List of State Highways
| # | Highway | Route | From | To | Formed | Notes |
|---|---|---|---|---|---|---|
| 0011 !1 | Pacific Highway1 !Pacific Highway | 0050 !I-5 | California | Washington | 1917 | |
| 001E1 !1E | Pacific Highway East1 !Pacific Highway East | 099E1 !OR 99E | I-5 (Hwy 1), OR 120 (Hwy 120) in North Portland | I-5/OR 99E (Hwy 1) in Salem | 1937 (1917 as 1, 1931 as 46) | |
| 001W1 !1W | Pacific Highway West1 !Pacific Highway West | N/A | I-5 (Hwy 1) in North Portland | US 26 (Hwy 26) in Portland | 1937 (1917 as 28, by 1920 as 3) | |
| 001W2 !1W | Pacific Highway West2 !Pacific Highway West | 0103 !OR 10 | US 26 (Hwy 26) in Portland | OR 10 (Hwy 40) in Portland | 1937 (1917 as 28, by 1920 as 3) | |
| 001W3 !1W | Pacific Highway West3 !Pacific Highway West | N/A | OR 10 (Hwy 40) in Portland | I-5 (Hwy 1) in Tigard | 1937 (1917 as 28, by 1920 as 3) | |
| 001W4 !1W | Pacific Highway West4 !Pacific Highway West | 099W1 !OR 99W | I-5 (Hwy 1) in Tigard | OR 99E (Hwy 58) in Junction City | 1937 (1917 as 28, by 1920 as 3) | |
| 001W5 !1W | Pacific Highway West5 !Pacific Highway West | 0991 !OR 99 | OR 99E (Hwy 58) in Junction City | I-5/OR 99 (Hwy 1), OR 126B (Hwy 15) in Eugene | 1937 (1917 as 28, by 1920 as 3) | |
| 0021 !2 | Columbia River Highway1 !Columbia River Highway | 0840 !I-84 | I-5/US 30 in Portland | I-84/US 30 (Hwy 6), US 730 (Hwy 2) east of Boardman | 1917 | |
| 0022 !2 | Columbia River Highway2 !Columbia River Highway | 7301 !US 730 | I-84/US 30 (Hwy 2) east of Boardman | Washington | 1917 | |
| 002W1 !2W | Lower Columbia River Highway1 !Lower Columbia River Highway | 0301 !US 30 | I-405/US 30 (Hwy 61) in Portland | US 101 (Hwy 9) in Astoria | 1974 (1917 as 2) | |
| 0031 !3 | Oswego Highway1 !Oswego Highway | 0431 !OR 43 | US 26 (Hwy 26) in Portland | OR 99E (Hwy 1E) in Oregon City | 1937 (1917 as 1) | |
| 0041 !4 | The Dalles-California Highway1 !The Dalles-California Highway | 1971 !US 197 | Washington | US 97 (Hwy 42) at Shaniko Junction | 1917 | |
| 0042 !4 | The Dalles-California Highway2 !The Dalles-California Highway | 0972 !US 97 | US 97 (Hwy 42) at Shaniko Junction | California | 1917 | |
| 004Y1 !4Y | 3rd Street Spur1 !3rd Street Spur | 097B1 !US 97B | US 97 (Hwy 4) in Bend | US 20/US 97B (Hwy 7, Hwy 17) in Bend | ||
| 0051 !5 | John Day Highway1 !John Day Highway | 0191 !OR 19 | I-84/US 30 (Hwy 2) in Arlington | US 26 (Hwy 41) at Rock Creek Junction | 1917 | |
| 0052 !5 | John Day Highway2 !John Day Highway | 0267 !US 26 | US 26 (Hwy 41) at Rock Creek Junction | US 20/US 26 (Hwy 7) in Vale | 1917 | |
| 0061 !6 | Old Oregon Trail Highway1 !Old Oregon Trail Highway | 0841 !I-84 | I-84/US 30/US 730 (Hwy 2) east of Boardman | Idaho | 1917 | |
| 0071 !7 | Central Oregon Highway1 !Central Oregon Highway | 0206 !US 20 | US 20/US 97B (Hwy 4Y, Hwy 17) in Bend | Idaho | 1917 | |
| 0081 !8 | Oregon-Washington Highway1 !Oregon-Washington Highway | 0111 !OR 11 | I-84 (Hwy 6) near Pendleton | Washington | 1917 | |
| 0091 !9 | Oregon Coast Highway1 !Oregon Coast Highway | 1011 !US 101 | Washington | California | 1920 !by 1920 (1917 as 3) | |
| 0101 !10 | Wallowa Lake Highway1 !Wallowa Lake Highway | 0821 !OR 82 | US 30 (Hwy 66) in La Grande | OR 350 (Hwy 350), OR 351 (Hwy 351) in Joseph | 1917 | |
| 0111 !11 | Enterprise-Lewiston Highway1 !Enterprise-Lewiston Highway | 0031 !OR 3 | Washington | OR 82 (Hwy 10) in Enterprise | 1917 | |
| 0121 !12 | Baker-Copperfield Highway1 !Baker-Copperfield Highway | 0071 !OR 7 | US 30 (Hwy 66) in Baker | I-84 (Hwy 6) in Baker | 1917 | |
| 0122 !12 | Baker-Copperfield Highway2 !Baker-Copperfield Highway | 0861 !OR 86 | I-84 (Hwy 6) near Baker | Idaho | 1917 | |
| 012Y1 !12Y | Halfway Spur1 !Halfway Spur | 086S1 !OR 86S | OR 86 (Hwy 12) northeast of Richland | OR 413 (Hwy 413), OR 414 (Hwy 414) in Halfway | ||
| 0141 !14 | Crooked River Highway1 !Crooked River Highway | 0271 !OR 27 | US 26 (Hwy 41) in Prineville | US 20 (Hwy 7) west of Brothers | 1928 !by 1928 (by 1920 as 37, 1922 as 19) | |
| 0151 !15 | McKenzie Highway1 !McKenzie Highway | 126B1 !OR 126B | I-5/OR 99 (Hwy 1, Hwy 1W) in Eugene | OR 126 (Hwy 227) in Springfield | 1917 | |
| 0152 !15 | McKenzie Highway2 !McKenzie Highway | 1263 !OR 126 | OR 126 (Hwy 227) in Springfield | OR 126 (Hwy 215) south of Belknap Springs | 1917 | |
| 0153 !15 | McKenzie Highway3 !McKenzie Highway | 2421 !OR 242 | OR 126 (Hwy 215) south of Belknap Springs | US 20/OR 126 (Hwy 16) in Sisters | 1917 | |
| 0154 !15 | McKenzie Highway4 !McKenzie Highway | 1265 !OR 126 | US 20/OR 126 (Hwy 16) in Sisters | US 97/OR 126 (Hwy 4, Hwy 41) in Redmond | 1917 | |
| 0161 !16 | Santiam Highway1 !Santiam Highway | 0204 !US 20 | US 20/OR 99E (Hwy 58) in Albany | US 20/OR 126/OR 242 (Hwy 15) in Sisters | 1917 | |
| 0171 !17 | McKenzie-Bend Highway1 !McKenzie-Bend Highway | 0205 !US 20 | US 20/OR 126 (Hwy 15) east of Sisters | US 20 (Hwy 7), US 97B (Hwy 4Y) in Bend | 1917 | |
| 0181 !18 | Willamette Highway1 !Willamette Highway | 0581 !OR 58 | I-5/OR 99 (Hwy 1, Hwy 226) at Goshen | US 97 (Hwy 4) north of Chemult | 1922 | |
| 0191 !19 | Fremont Highway1 !Fremont Highway | 0311 !OR 31 | US 97 (Hwy 4) south of La Pine | US 395 (Hwy 49) at Valley Falls | 1917 | |
| 0192 !19 | Fremont Highway2 !Fremont Highway | 3955 !US 395 | US 395 (Hwy 49) at Valley Falls | California | 1917 | |
| 0201 !20 | Klamath Falls-Lakeview Highway1 !Klamath Falls-Lakeview Highway | 0399 !OR 39 | US 97 (Hwy 4) in Klamath Falls | OR 39/OR 140 (Hwy 50) southeast of Klamath Falls | 1917 | Old route of OR 39, still shown as OR 39 in the route description and video log |
| 0202 !20 | Klamath Falls-Lakeview Highway2 !Klamath Falls-Lakeview Highway | 1403 !OR 140 | OR 39/OR 140 (Hwy 50) southeast of Klamath Falls | US 395 (Hwy 19) in Lakeview | 1917 | |
| 0211 !21 | Green Springs Highway1 !Green Springs Highway | 0661 !OR 66 | OR 99 (Hwy 63) in Ashland | US 97 (Hwy 4), OR 140 (Hwy 424) south of Klamath Falls | 1917 | |
| 0221 !22 | Crater Lake Highway1 !Crater Lake Highway | 0621 !OR 62 | OR 99 (Hwy 63), OR 238 (Hwy 272) in Medford | US 97 (Hwy 4) at Lobert Junction | 1917 | |
| 0231 !23 | Dairy-Bonanza Highway1 !Dairy-Bonanza Highway | 0701 !OR 70 | OR 140 (Hwy 20) at Dairy | Bonanza | 1926 !by 1926 | |
| 0251 !25 | Redwood Highway1 !Redwood Highway | 1991 !US 199 | I-5/OR 99 (Hwy 1) in Grants Pass (exit 58) | California | 1917 | |
| 025Y1 !25Y | Redwood Highway Spur1 !Redwood Highway Spur | N/A | US 199 (Hwy 25), OR 99 (Hwy 60), OR 238 (Hwy 272) in Grants Pass | I-5 (Hwy 1) in Grants Pass (exit 55) | ||
| 0261 !26 | Mt. Hood Highway1 !Mt. Hood Highway | 0263 !US 26 | OR 10 (Hwy 1W) in Portland | US 26 (Hwy 53) east of Government Camp | 1917 | |
| 0262 !26 | Mt. Hood Highway2 !Mt. Hood Highway | 0351 !OR 35 | US 26 (Hwy 53) east of Government Camp | US 30 (Hwy 100) east of Hood River | 1917 | |
| 0271 !27 | Alsea Highway1 !Alsea Highway | 0341 !OR 34 | US 101 (Hwy 9) in Waldport | US 20/OR 34 (Hwy 33) west of Philomath | 1921 | |
| 0281 !28 | Pendleton-John Day Highway1 !Pendleton-John Day Highway | N/A | OR 11 (Hwy 8) in Pendleton | OR 37 (Southwest 17th Street) in Pendleton | 1920 !by 1920 | |
| 0282 !28 | Pendleton-John Day Highway2 !Pendleton-John Day Highway | 0373 !OR 37 | OR 37 (Southwest 17th Street) in Pendleton | I-84/US 395 (Hwy 6) in Pendleton | 1920 !by 1920 | |
| 0283 !28 | Pendleton-John Day Highway3 !Pendleton-John Day Highway | 3952 !US 395 | I-84/US 395 (Hwy 6) in Pendleton | US 26 (Hwy 5) in Mount Vernon | 1920 !by 1920 | |
| 0291 !29 | Tualatin Valley Highway1 !Tualatin Valley Highway | 0082 !OR 8 | US 26 (Hwy 47) east of Beaverton | OR 8, OR 47 (Hwy 102) in Forest Grove | 1917 | |
| 0292 !29 | Tualatin Valley Highway2 !Tualatin Valley Highway | 0473 !OR 47 | OR 8, OR 47 (Hwy 102) in Forest Grove | OR 99W (Hwy 1W) north of McMinnville | 1917 | |
| 0301 !30 | Willamina-Salem Highway1 !Willamina-Salem Highway | 0222 !OR 22 | OR 18/OR 22 (Hwy 39) west of Willamina | OR 99EB (Hwy 72) in Salem | 1917 | |
| 0311 !31 | Albany-Corvallis Highway1 !Albany-Corvallis Highway | 0203 !US 20 | US 20 (Hwy 210) in Corvallis | US 20/OR 99E (Hwy 58) in Albany | 1917 | |
| 0321 !32 | Three Rivers Highway1 !Three Rivers Highway | 0221 !OR 22 | US 101 (Hwy 9) at Hebo | OR 18/OR 22 (Hwy 39) at Valley Junction | 1917 | |
| 0331 !33 | Corvallis-Newport Highway1 !Corvallis-Newport Highway | 0201 !US 20 | US 101 (Hwy 9) in Newport | US 20/OR 34/OR 99W (Hwy 1W) in Corvallis | 1917 | |
| 0332 !33 | Corvallis-Newport Highway2 !Corvallis-Newport Highway | 0342 !OR 34 | US 20/OR 34/OR 99W (Hwy 1W) in Corvallis | OR 34 (Hwy 210) east of Corvallis | 1917 | |
| 0351 !35 | Coos Bay-Roseburg Highway1 !Coos Bay-Roseburg Highway | 0421 !OR 42 | US 101 (Hwy 9) north of Coquille | I-5 (Hwy 1) south of Roseburg | 1917 | |
| 0361 !36 | Pendleton-Cold Springs Highway1 !Pendleton-Cold Springs Highway | N/A | Columbia River | US 730 at Cold Springs Junction | 1917 | |
| 0362 !36 | Pendleton-Cold Springs Highway2 !Pendleton-Cold Springs Highway | 0371 !OR 37 | US 730 at Cold Springs Junction | US 30/OR 37 (Hwy 67) in Pendleton | 1917 | |
| 0371 !37 | Wilson River Highway1 !Wilson River Highway | 0061 !OR 6 | US 101 (Hwy 9), OR 131 (Hwy 131) in Tillamook | US 26 (Hwy 47) west of North Plains | 1931 | |
| 0381 !38 | Oregon Caves Highway1 !Oregon Caves Highway | 0461 !OR 46 | US 199 (Hwy 25) in Cave Junction | Oregon Caves | 1922 !by 1922 | |
| 0391 !39 | Salmon River Highway1 !Salmon River Highway | 0181 !OR 18 | US 101 (Hwy 9) west of Otis Junction | OR 99W (Hwy 1W) north of Dayton | 1930 | |
| 039Y1 !39Y | McMinnville Spur1 !McMinnville Spur | N/A | OR 18 (Hwy 39) southeast of McMinnville | McMinnville | ||
| 0401 !40 | Beaverton-Hillsdale Highway1 !Beaverton-Hillsdale Highway | 0102 !OR 10 | OR 10 (Hwy 142), OR 217 (Hwy 144) in Beaverton | OR 10/OR 99W (Hwy 1W) in Portland | 1920 !by 1920 | |
| 0411 !41 | Ochoco Highway1 !Ochoco Highway | 1266 !OR 126 | US 97 (Hwy 4), OR 126 (Hwy 15) in Redmond | US 26 (Hwy 360) in Prineville | 1921 (1917 as 15) | |
| 0412 !41 | Ochoco Highway2 !Ochoco Highway | 0266 !US 26 | US 26 (Hwy 360) in Prineville | US 26/OR 19 (Hwy 5) at Rock Creek Junction | 1921 (1917 as 15) | |
| 0421 !42 | Sherman Highway1 !Sherman Highway | 0971 !US 97 | Washington | US 97/US 197 (Hwy 4) at Cow Canyon | 1921 | |
| 0431 !43 | Monmouth-Independence Highway1 !Monmouth-Independence Highway | 0511 !OR 51 | OR 99W (Hwy 1W), OR 194 (Hwy 194) in Monmouth | OR 51 (Hwy 193) in Independence | 1922 !by 1922 | |
| 0441 !44 | Wapinitia Highway1 !Wapinitia Highway | 2161 !OR 216 | US 26 (Hwy 53) near Bear Springs | US 197/OR 216 northwest of Maupin | 1924 !by 1924 | |
| 0451 !45 | Umpqua Highway1 !Umpqua Highway | 0381 !OR 38 | US 101 (Hwy 9) in Reedsport | OR 99 (former Hwy 236) in Drain | 1931 | |
| 0452 !45 | Umpqua Highway2 !Umpqua Highway | 0993 !OR 99 | OR 99 (former Hwy 236) in Drain | I-5/OR 99 (Hwy 1) at Anlauf | 1931 | |
| 0461 !46 | Necanicum Highway1 !Necanicum Highway | 0531 !OR 53 | US 26 (Hwy 47) at Necanicum | US 101 (Hwy 9) near Wheeler | 1939 | |
| 0471 !47 | Sunset Highway1 !Sunset Highway | 0261 !US 26 | US 101 (Hwy 9) south of Seaside | I-405/US 26 (Hwy 61) in Portland | 1932 | |
| 0472 !47 | Sunset Highway2 !Sunset Highway | N/A | I-405/US 26 (Hwy 61) in Portland | Front Street (Hwy 1W) in Portland | 1932 | |
| 0481 !48 | John Day-Burns Highway1 !John Day-Burns Highway | 3953 !US 395 | US 26/US 395 (Hwy 6) in John Day | US 20/US 395 (Hwy 7) northeast of Burns | 1933 | |
| 0491 !49 | Lakeview-Burns Highway1 !Lakeview-Burns Highway | 3954 !US 395 | US 20/US 395 (Hwy 7) near Riley | US 395/OR 31 (Hwy 19) at Valley Falls | 1933 | |
| 0501 !50 | Klamath Falls-Malin Highway1 !Klamath Falls-Malin Highway | 0391 !OR 39 | US 97 (Hwy 4) in Klamath Falls | OR 39 (Hwy 426) east of Merrill | 1939 | |
| 0502 !50 | Klamath Falls-Malin Highway2 !Klamath Falls-Malin Highway | N/A | OR 39 (Hwy 426) east of Merrill | California | 1939 | |
| 050Y1 !50Y | Esplanade Spur1 !Esplanade Spur | 097B2 !US 97B | US 97B/OR 39 (Hwy 50) in Klamath Falls | US 97B/OR 39 (Hwy 20) in Klamath Falls | ||
| 0511 !51 | Wilsonville-Hubbard Highway1 !Wilsonville-Hubbard Highway | 5511 !OR 551 | I-5 (Hwy 1) at Wilsonville | OR 99E (Hwy 1E) southwest of Aurora | 1937 | |
| 0521 !52 | Heppner Highway1 !Heppner Highway | 0741 !OR 74 | I-84/US 30 (Hwy 2) east of Arlington | US 395 (Hwy 28) at Nye | 1939 (1917 as 8) | |
| 0531 !53 | Warm Springs Highway1 !Warm Springs Highway | 0264 !US 26 | US 26/OR 35 (Hwy 26) east of Government Camp | US 26/US 97 (Hwy 4) at Madras | 1940 (1933 as 360) | |
| 0541 !54 | Umatilla-Stanfield Highway1 !Umatilla-Stanfield Highway | 3951 !US 395 | US 395/US 730 (Hwy 2) east of Umatilla | I-84/US 30/US 395 (Hwy 6), Hwy 320 near Stanfield | 1954 !by 1954 (1917 as 2, by 1932 as 6) | |
| 0581 !58 | Albany-Junction City Highway1 !Albany-Junction City Highway | 099E2 !OR 99E | I-5/OR 99E (Hwy 1) in Albany | OR 99/OR 99W (Hwy 1W) in Junction City | 1958 (1917 as 1, 1937 as 1E) | |
| 0601 !60 | Rogue River Highway1 !Rogue River Highway | 0999A !OR 99 | US 199/OR 99 (Hwy 25), OR 238 (Hwy 272) in Grants Pass | I-5 (Hwy 1), OR 99/OR 234 (Hwy 271) at Rock Point | 1959 (1917 as 1) | |
| 0611 !61 | Stadium Freeway Highway1 !Stadium Freeway Highway | 4050 !I-405 | I-5 (Hwy 1) in Portland | I-5/US 30 (Hwy 1) in Portland | 1961 | |
| 0621 !62 | Florence-Eugene Highway1 !Florence-Eugene Highway | 1261 !OR 126 | US 101 (Hwy 9) in Florence | OR 99/OR 126 (Hwy 1W) in Eugene | 1966 (1917 as 34, 1933 as 220) | |
| 0631 !63 | Rogue Valley Highway1 !Rogue Valley Highway | 0999C !OR 99 | I-5/OR 99 (Hwy 1) at Seven Oaks | I-5 (Hwy 1) south of Ashland | 1962 (1917 as 1) | |
| 0641 !64 | East Portland Freeway Highway1 !East Portland Freeway Highway | 2050 !I-205 | I-5 (Hwy 1) in Tualatin | Washington | 1966 | |
| 0661 !66 | La Grande-Baker Highway1 !La Grande-Baker Highway | 0307 !US 30 | I-84/US 30 (Hwy 6) northwest of La Grande | I-84/US 30 (Hwy 6) south of La Grande | 1968 (1917 as 6, 1950 as 343) | |
| 0662 !66 | La Grande-Baker Highway2 !La Grande-Baker Highway | 2031 !OR 203 | I-84/US 30 (Hwy 6) south of La Grande | OR 203 (Hwy 340), OR 237 (Hwy 342) in Union | 1968 (1917 as 6, 1950 as 343) | |
| 0663 !66 | La Grande-Baker Highway3 !La Grande-Baker Highway | 2372 !OR 237 | OR 203 (Hwy 340), OR 237 (Hwy 342) in Union | I-84/US 30 (Hwy 6) in North Powder | 1968 (1917 as 6, 1950 as 343) | |
| 0664 !66 | La Grande-Baker Highway4 !La Grande-Baker Highway | 0308 !US 30 | I-84/US 30 (Hwy 6) in North Powder | I-84/US 30 (Hwy 6) south of Baker | 1968 (1917 as 6, 1950 as 343) | |
| 0671 !67 | Pendleton Highway1 !Pendleton Highway | 0306 !US 30 | I-84/US 30 (Hwy 6) west of Pendleton | I-84/US 30 (Hwy 6) east of Pendleton | 1969 (1917 as 6) | |
| 0681 !68 | Cascade Highway North1 !Cascade Highway North | 2131 !OR 213 | Portland International Airport | OR 213/OR 224 (Hwy 171) near Milwaukie | 1971 (1937 as 160) | |
| 0691 !69 | Beltline Highway1 !Beltline Highway | 5691 !OR 569 | OR 126 (Hwy 62) in Eugene | I-5 (Hwy 1) in Springfield | 1978 | |
| 0701 !70 | McNary Highway1 !McNary Highway | 0821 !I-82 | Washington | I-84 (Hwy 6) | 1979 | |
| 0711 !71 | Whitney Highway1 !Whitney Highway | 0072 !OR 7 | US 26 (Hwy 5) south of Austin | US 30/OR 7 (Hwy 66) in Baker | 1980 (1917 as 13, 1933 as 410) | |
| 0721 !72 | Salem Highway1 !Salem Highway | 099EB1 !OR 99EB | I-5 (Hwy 1) north of Salem | I-5/OR 99E (Hwy 1), OR 22 (Hwy 162) in Salem | 1985 (1917 as 1, 1937 as 1E) | |
| 1001 !100 | Historic Columbia River Highway1 !Historic Columbia River Highway | N/A | Lewis and Clark State Park | I-84/US 30 (Hwy 2) at Dodson | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1002 !100 | Historic Columbia River Highway2 !Historic Columbia River Highway | 0302 !US 30 | I-84/US 30 (Hwy 2) west of Cascade Locks | US 30 (Hwy 2 Connector) at Forest Lane in Cascade Locks | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1003 !100 | Historic Columbia River Highway3 !Historic Columbia River Highway | N/A | US 30 (Hwy 2 Connector) at Forest Lane in Cascade Locks | I-84/US 30 (Hwy 2) east of Cascade Locks | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1004 !100 | Historic Columbia River Highway4 !Historic Columbia River Highway | 0303 !US 30 | I-84/US 30 (Hwy 2) west of Hood River | US 30 (Hwy 2 Connector), OR 35 (Hwy 26) east of Hood River | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1005 !100 | Historic Columbia River Highway5 !Historic Columbia River Highway | N/A | US 30 (Hwy 2 Connector), OR 35 (Hwy 26) east of Hood River | US 30 (Hwy 2 Connector) in Mosier | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1006 !100 | Historic Columbia River Highway6 !Historic Columbia River Highway | 0304 !US 30 | US 30 (Hwy 2 Connector) in Mosier | US 30 (Hwy 292) in The Dalles | 1993 (1917 as 2, 1949 as 125, 1955 as 292, 1964 as 283, 1986 as 284) | |
| 1021 !102 | Nehalem Highway1 !Nehalem Highway | 2021 !OR 202 | US 101 (Hwy 9) in Astoria | OR 47 (Hwy 110) at Mist | 1933 | |
| 1022 !102 | Nehalem Highway2 !Nehalem Highway | 0472 !OR 47 | OR 47 (Hwy 110) at Mist | OR 8/OR 47 (Hwy 29) in Forest Grove | 1933 | |
| 1031 !103 | Fishhawk Falls Highway1 !Fishhawk Falls Highway | 1031 !OR 103 | OR 202 (Hwy 102) at Jewell | US 26 (Hwy 47) near Elsie | 1941 | |
| 1041 !104 | Fort Stevens Highway1 !Fort Stevens Highway | 1041 !OR 104 | Fort Stevens State Park | US 101 (Hwy 9) south of Warrenton | 1946 | |
| 104Y1 !104Y | Fort Stevens Spur1 !Fort Stevens Spur | 104S1 !OR 104S | OR 104 (Hwy 104) in Warrenton | US 101 (Hwy 9) in Warrenton | ||
| 1051 !105 | Warrenton-Astoria Highway1 !Warrenton-Astoria Highway | N/A | OR 104 (Hwy 104) in Warrenton | US 101 (Hwy 9) in Warrenton | 1946 | |
| 1051 !105 | Warrenton-Astoria Highway1 !Warrenton-Astoria Highway | 101B1 !US 101B | US 101 (Hwy 9) in Warrenton | US 101B/OR 202 (Hwy 102) in Astoria | 1946 | |
| 1101 !110 | Mist-Clatskanie Highway1 !Mist-Clatskanie Highway | 0471 !OR 47 | US 30 (Hwy 2W) in Clatskanie | OR 47/OR 202 (Hwy 102) at Mist | 1933 | |
| 1201 !120 | Swift Highway1 !Swift Highway | 1201 !OR 120 | North Columbia Boulevard in Portland | I-5 (Hwy 1), OR 99E (Hwy 1E) in North Portland | 1933 | |
| 1231 !123 | Northeast Portland Highway1 !Northeast Portland Highway | 030BY1 !US 30BY | US 30 (Hwy 2W) in Portland | I-84/US 30 (Hwy 2) in Fairview (exit 14) | 1937 | |
| 1301 !130 | Little Nestucca Highway1 !Little Nestucca Highway | 1301 !OR 130 | US 101 (Hwy 9) southwest of Hebo | OR 22 (Hwy 32) at Dolph | 1933 | |
| 1311 !131 | Netarts Highway1 !Netarts Highway | 1311 !OR 131 | Oceanside | US 101 (Hwy 9), OR 6 (Hwy 37) in Tillamook | 1940 | |
| 1381 !138 | North Umpqua Highway1 !North Umpqua Highway | 1382 !OR 138 | I-5/OR 138 (Hwy 1) in Roseburg | US 97 (Hwy 4) south of Chemult | 2003 (1985 as 73, 1937 as 232, 1937 as 425) | |
| 1401 !140 | Hillsboro-Silverton Highway1 !Hillsboro-Silverton Highway | 2191 !OR 219 | OR 8 (Hwy 29) in Hillsboro | I-5 (Hwy 1) in Woodburn | 1933 | |
| 1402 !140 | Hillsboro-Silverton Highway2 !Hillsboro-Silverton Highway | 2141 !OR 214 | I-5 (Hwy 1) in Woodburn | OR 213 (Hwy 160), OR 214 (Hwy 163) in Silverton | 1933 | |
| 1411 !141 | Beaverton-Tualatin Highway1 !Beaverton-Tualatin Highway | 1411 !OR 141 | OR 217 (Hwy 144) in Beaverton | I-5 (Hwy 1) in Wilsonville | 1933 | |
| 1421 !142 | Farmington Highway1 !Farmington Highway | 0101 !OR 10 | OR 219 (Hwy 140) south of Hillsboro | OR 10 (Hwy 40) in Beaverton | 1933 | |
| 1431 !143 | Scholls Highway1 !Scholls Highway | 2101 !OR 210 | OR 219 (Hwy 140) at Scholls | OR 10 (Hwy 40) west of Hillsdale | 1933 | |
| 1441 !144 | Beaverton-Tigard Highway1 !Beaverton-Tigard Highway | 2171 !OR 217 | US 26 (Hwy 47) at Cedar Hills | I-5 (Hwy 1) east of Tigard | 1960 | |
| 1501 !150 | Salem-Dayton Highway1 !Salem-Dayton Highway | 2211 !OR 221 | OR 18 (Hwy 39) northeast of Dayton | OR 22 (Hwy 30) in Salem | 1933 | |
| 1511 !151 | Yamhill-Newberg Highway1 !Yamhill-Newberg Highway | 2401 !OR 240 | OR 47 (Hwy 29) in Yamhill | OR 99W (Hwy 1W) in Newberg | 1933 | |
| 1531 !153 | Bellevue-Hopewell Highway1 !Bellevue-Hopewell Highway | 1531 !OR 153 | OR 18 (Hwy 39) at Bellevue | OR 221 (Hwy 150) east of Hopewell | 1933 | |
| 1541 !154 | Lafayette Highway1 !Lafayette Highway | 2331 !OR 233 | OR 18 (Hwy 39) southwest of Dayton | OR 233 (Hwy 155) southwest of Dayton | 1933 | |
| 1542 !154 | Lafayette Highway2 !Lafayette Highway | 1541 !OR 154 | OR 233 (Hwy 155) southwest of Dayton | OR 153 (Hwy 153) | 1933 | |
| 1551 !155 | Amity-Dayton Highway1 !Amity-Dayton Highway | 2332 !OR 233 | OR 99W (Hwy 1W) north of Amity | OR 233 (Hwy 154) southwest of Dayton | 1936 | |
| 1552 !155 | Amity-Dayton Highway2 !Amity-Dayton Highway | N/A | OR 233 (Hwy 154) southwest of Dayton | OR 221 (Hwy 150) in Dayton | 1936 | |
| 1571 !157 | Willamina-Sheridan Highway1 !Willamina-Sheridan Highway | 018B1 !OR 18B | OR 18 (Hwy 39) at Wallace Bridge | OR 18 (Hwy 39) east of Sheridan | 1959 (1917 as 32, 1939 as 39) | |
| 1601 !160 | Cascade Highway South1 !Cascade Highway South | 2132 !OR 213 | I-205 (Hwy 64) near Park Place | OR 213/OR 214 (Hwy 140) in Silverton | 1933 | |
| 1611 !161 | Woodburn-Estacada Highway1 !Woodburn-Estacada Highway | 2112 !OR 211 | OR 99E (Hwy 1E) north of Woodburn | OR 211/OR 224 (Hwy 171) in Estacada | 1933 | |
| 1621 !162 | North Santiam Highway1 !North Santiam Highway | 0223 !OR 22 | I-5/OR 99E (Hwy 1), OR 99EB (Hwy 72) in Salem | US 20/OR 126 (Hwy 16) west of Suttle Lake | 1933 | |
| 1631 !163 | Silver Creek Falls Highway1 !Silver Creek Falls Highway | 2142 !OR 214 | OR 22 (Hwy 162) west of Shaw | OR 213 (Hwy 160), OR 214 (Hwy 140) in Silverton | 1933 | |
| 1641 !164 | Jefferson Highway1 !Jefferson Highway | 1641 !OR 164 | I-5/OR 99E (Hwy 1) northwest of Jefferson (exit 244) | I-5/OR 99E (Hwy 1) north of Millersburg (exit 238) | 1945 (1917 as 1, 1937 as 1E) | |
| 1711 !171 | Clackamas Highway1 !Clackamas Highway | 2241 !OR 224 | OR 99E (Hwy 1E) in Milwaukie | Near Ripplebrook | 1947 | |
| 1721 !172 | Eagle Creek-Sandy Highway1 !Eagle Creek-Sandy Highway | 2111 !OR 211 | OR 211/OR 224 (Hwy 171) near Eagle Creek | US 26 (Hwy 26) in Sandy | 1947 | |
| 1731 !173 | Timberline Highway1 !Timberline Highway | 1731 !OR 173 | Timberline Lodge | US 26 (Hwy 26) east of Government Camp | 1950 | |
| 1741 !174 | Clackamas-Boring Highway1 !Clackamas-Boring Highway | 2122 !OR 212 | OR 212/OR 224 (Hwy 171) near Rockcreek | US 26 (Hwy 26) west of Sandy | 1977 | |
| 1801 !180 | Eddyville-Blodgett Highway1 !Eddyville-Blodgett Highway | 1801 !OR 180 | US 20 (Hwy 33) at Eddyville | US 20 (Hwy 33) at Blodgett | 1933 | |
| 1811 !181 | Siletz Highway1 !Siletz Highway | 2291 !OR 229 | US 101 (Hwy 9) at Kernville | US 20 (Hwy 33) north of Toledo | 1933 | |
| 1821 !182 | Otter Rock Highway1 !Otter Rock Highway | 1821 !OR 182 | Devils Punch Bowl State Natural Area | US 101 (Hwy 9) north of Newport | 1947 | |
| 1891 !189 | Dallas-Rickreall Highway1 !Dallas-Rickreall Highway | 223S1 !OR 223S | OR 223 (Hwy 191) in Dallas | OR 22 (Hwy 30) at Rickreall | 1953 (1919 as 30) | |
| 1911 !191 | Kings Valley Highway1 !Kings Valley Highway | 2231 !OR 223 | OR 22 (Hwy 30) west of Rickreall | US 20 (Hwy 33) near Wren | 1933 | |
| 1931 !193 | Independence Highway1 !Independence Highway | 0512 !OR 51 | OR 22 (Hwy 30) west of Salem | OR 51 (Hwy 43) in Independence | 1933 | |
| 1941 !194 | Monmouth Highway1 !Monmouth Highway | 1941 !OR 194 | OR 223 (Hwy 191) south of Dallas | OR 99 (Hwy 1W), OR 51 (Hwy 43) in Monmouth | 1944 (1933 as 190) | |
| 2001 !200 | Territorial Highway1 !Territorial Highway | 2001 !OR 200 | OR 99W (Hwy 1W) in Monroe | North of Anlauf | 1933 | |
| 2011 !201 | Alsea-Deadwood Highway1 !Alsea-Deadwood Highway | 5011 !OR 501 | OR 34 (Hwy 27) at Alsea | Lobster Valley Road | 1933 | |
| 2101 !210 | Corvallis-Lebanon Highway1 !Corvallis-Lebanon Highway | 0202 !US 20 | OR 99W (Hwy 1W) in Corvallis | US 20 (Hwy 210) in Corvallis | 1933 | |
| 2101 !210 | Corvallis-Lebanon Highway1 !Corvallis-Lebanon Highway | N/A | US 20 (Hwy 210) in Corvallis | OR 34 (Hwy 33) east of Corvallis | 1933 | |
| 2102 !210 | Corvallis-Lebanon Highway2 !Corvallis-Lebanon Highway | 0343 !OR 34 | OR 34 (Hwy 33) east of Corvallis | US 20 (Hwy 16) in Lebanon | 1933 | |
| 2111 !211 | Albany-Lyons Highway1 !Albany-Lyons Highway | 2261 !OR 226 | US 20 (Hwy 16) at Crabtree Corners | OR 22 (Hwy 162) at Mehama | 1933 | |
| 2121 !212 | Halsey-Sweet Home Highway1 !Halsey-Sweet Home Highway | 2281 !OR 228 | OR 99E (Hwy 58) in Halsey | US 20 (Hwy 16) in Sweet Home | 1933 | |
| 2151 !215 | Clear Lake-Belknap Springs Highway1 !Clear Lake-Belknap Springs Highway | 1264 !OR 126 | US 20/OR 126 (Hwy 16) west of Santiam Junction | OR 126/OR 242 (Hwy 15) south of Belknap Springs | 1955 | |
| 2221 !222 | Springfield-Creswell Highway1 !Springfield-Creswell Highway | 2221 !OR 222 | OR 126B (Hwy 15) in Springfield | OR 99 (Hwy 226) in Creswell | 1933 | |
| 2251 !225 | McVay Highway1 !McVay Highway | 2251 !OR 225 | OR 126B (Hwy 15) east of Eugene | I-5/OR 99 (Hwy 1) south of Springfield | 1951 (1917 as 1) | |
| 2261 !226 | Goshen-Divide Highway1 !Goshen-Divide Highway | 0992 !OR 99 | I-5/OR 99 (Hwy 1), OR 58 (Hwy 18) at Goshen | I-5/OR 99 (Hwy 1) at Divide | 1957 (1917 as 1) | |
| 2271 !227 | Eugene-Springfield Highway1 !Eugene-Springfield Highway | 1262 !OR 126 | OR 99W/OR 126/OR 126B (Hwy 1W) in Eugene | OR 126/OR 126B (Hwy 15) in Springfield | 1955 | Also carries I-105 west of I-5 (Hwy 1) |
| 2281 !228 | Springfield Highway1 !Springfield Highway | 5281 !OR 528 | OR 126 (Hwy 227) in Springfield | OR 126B (Hwy 15) in Springfield | 1960 | |
| 2291 !229 | Mapleton-Junction City Highway1 !Mapleton-Junction City Highway | 0361 !OR 36 | OR 126 (Hwy 62) in Mapleton | OR 99 (Hwy 1W) near Junction City | 1966 (34) | |
| 2301 !230 | Tiller-Trail Highway1 !Tiller-Trail Highway | 2271 !OR 227 | South of Tiller | OR 62 (Hwy 22) at Trail | 1933 | |
| 2311 !231 | Elkton-Sutherlin Highway1 !Elkton-Sutherlin Highway | 1381 !OR 138 | OR 38 (Hwy 45) in Elkton | I-5/OR 138 (Hwy 1) in Sutherlin | 1933 | |
| 2312 !231 | Elkton-Sutherlin Highway2 !Elkton-Sutherlin Highway | N/A | I-5/OR 138 (Hwy 1) in Sutherlin | OR 99 (Hwy 234) in Sutherlin | 1933 | |
| 2331 !233 | West Diamond Lake Highway1 !West Diamond Lake Highway | 2301 !OR 230 | OR 62 (Hwy 22) near Union Creek | OR 138 (Hwy 138) near Diamond Lake | 1937 | |
| 2341 !234 | Oakland-Shady Highway1 !Oakland-Shady Highway | 0995 !OR 99 | I-5/OR 99 (Hwy 1) near Oakland | OR 42 (Hwy 35) at Shady | 1956 (1917 as 1) | |
| 2351 !235 | Dillard Highway1 !Dillard Highway | 0996 !OR 99 | OR 42/OR 99 (Hwy 35) in Winston | I-5/OR 99 (Hwy 1) at Dillard Junction | 1957 (1917 as 1) | Not state-maintained |
| 2361 !236 | Drain-Yoncalla Highway1 !Drain-Yoncalla Highway | 0994 !OR 99 | OR 38/OR 99 (Hwy 45) in Drain | I-5/OR 99 (Hwy 1) at Yoncalla | 1956 (1917 as 1) | Not state-maintained |
| 2371 !237 | Myrtle Creek Highway1 !Myrtle Creek Highway | 0997 !OR 99 | I-5/OR 99 (Hwy 1) west of Myrtle Creek | I-5/OR 99 (Hwy 1) near Riddle | 1959 (1917 as 1) | Not state-maintained |
| 2401 !240 | Cape Arago Highway1 !Cape Arago Highway | 5401 !OR 540 | US 101 (Hwy 9) in North Bend | Cape Arago State Park | 1933 | |
| 2411 !241 | Coos River Highway1 !Coos River Highway | 2411 !OR 241 | US 101 (Hwy 9) south of Coos Bay | East of Nesika County Park | 1933 | |
| 2421 !242 | Powers Highway1 !Powers Highway | 5421 !OR 542 | OR 42 (Hwy 35) southeast of Myrtle Point | Powers | 1933 | |
| 2441 !244 | Coquille-Bandon Highway1 !Coquille-Bandon Highway | 42S1 !OR 42S | US 101 (Hwy 9) in Bandon | OR 42 (Hwy 35) in Coquille | 1957 (1917 as 3, by 1920 as 9) | |
| 2501 !250 | Cape Blanco Highway1 !Cape Blanco Highway | 2501 !OR 250 | Cape Blanco State Park | US 101 (Hwy 9) north of Port Orford | 1933 | |
| 2511 !251 | Port Orford Highway1 !Port Orford Highway | 2511 !OR 251 | Port Orford Heads State Park | US 101 (Hwy 9) in Port Orford | 1933 | |
| 2551 !255 | Carpenterville Highway1 !Carpenterville Highway | 2551 !OR 255 | US 101 (Hwy 9) south of Gold Beach | US 101 (Hwy 9) in Brookings | 1999 | |
| 2601 !260 | Rogue River Loop Highway1 !Rogue River Loop Highway | 2601 !OR 260 | Upper River Road in Grants Pass | US 199 (Hwy 25) southwest of Grants Pass | 1933 | |
| 2701 !270 | Lake of the Woods Highway1 !Lake of the Woods Highway | 1401 !OR 140 | OR 62 (Hwy 22) near White City | OR 66 (Hwy 21) southwest of Klamath Falls | 1933 | |
| 2711 !271 | Sams Valley Highway1 !Sams Valley Highway | 2341 !OR 234 | I-5 (Hwy 1), OR 99 (Hwy 60) at Rock Point | OR 62 (Hwy 22) north of Eagle Point | 1933 | |
| 271Y1 !271Y | Gold Hill Spur1 !Gold Hill Spur | 0999B !OR 99 | OR 99/OR 234 (Hwy 271) in Gold Hill | I-5/OR 99 (Hwy 1) southeast of Gold Hill | ||
| 2721 !272 | Jacksonville Highway1 !Jacksonville Highway | 2381 !OR 238 | US 199/OR 99 (Hwy 25, Hwy 25Y, Hwy 60) south of Grants Pass | OR 62 (Hwy 22), OR 99 (Hwy 63) in Medford | 1933 | |
| 2731 !273 | Siskiyou Highway1 !Siskiyou Highway | 2731 !OR 273 | OR 66 (Hwy 21) southeast of Ashland | I-5 (Hwy 1) | 1938 | |
| 2811 !281 | Hood River Highway1 !Hood River Highway | 2811 !OR 281 | US 30/OR 35 (Hwy 100) in Hood River | OR 35 (Hwy 26) at Mt. Hood | 1933 | |
| 2821 !282 | Odell Highway1 !Odell Highway | 2821 !OR 282 | OR 281 (Hwy 281) south of Hood River | OR 35 (Hwy 26) south of Hood River | 1940 | |
| 2901 !290 | Sherars Bridge Highway1 !Sherars Bridge Highway | 2162 !OR 216 | US 197/OR 216 (Hwy 4) north of Tygh Valley | US 97 (Hwy 42) in Grass Valley | 1933 | |
| 2911 !291 | Shaniko-Fossil Highway1 !Shaniko-Fossil Highway | 2181 !OR 218 | US 97 (Hwy 42) at Shaniko | OR 19 (Hwy 5) in Fossil | 1933 | |
| 2921 !292 | Mosier-The Dalles Highway1 !Mosier-The Dalles Highway | 0305 !US 30 | US 30 (Hwy 100) in The Dalles | US 197 (Hwy 4) east of The Dalles | 1955 (1917 as 2) | |
| 2931 !293 | Antelope Highway1 !Antelope Highway | 2931 !OR 293 | US 97 (Hwy 4) north of Madras | OR 218 (Hwy 291) in Antelope | 1971 | |
| 3001 !300 | Wasco-Heppner Highway1 !Wasco-Heppner Highway | N/A | US 97 (Hwy 42) northwest of Wasco | OR 206 (Hwy 301) in Wasco | 1933 | |
| 3002 !300 | Wasco-Heppner Highway2 !Wasco-Heppner Highway | 2062 !OR 206 | OR 206 (Hwy 301) in Wasco | OR 74/OR 207 (Hwy 52) in Heppner | 1933 | |
| 3011 !301 | Celilo-Wasco Highway1 !Celilo-Wasco Highway | 2061 !OR 206 | I-84/US 30 at Celilo | OR 206 (Hwy 300) in Wasco | 1936 | |
| 301Y1 !301Y | Celilo-Wasco Highway Spur1 !Celilo-Wasco Highway Spur | N/A | OR 206 (Hwy 301) east of Celilo | US 97 (Hwy 42) at Biggs | ||
| 3201 !320 | Lexington-Echo Highway1 !Lexington-Echo Highway | 2072 !OR 207 | OR 74/OR 207 (Hwy 52) in Lexington | OR 207 (Hwy 333) southwest of Hermiston | 1933 | |
| 3202 !320 | Lexington-Echo Highway2 !Lexington-Echo Highway | N/A | OR 207 (Hwy 333) southwest of Hermiston | I-84/US 30/US 395 (Hwy 6, Hwy 54) near Stanfield | 1933 | |
| 3211 !321 | Heppner-Spray Highway1 !Heppner-Spray Highway | 2073 !OR 207 | OR 206/OR 207 (Hwy 300) at Ruggs | OR 19/OR 207 (Hwy 5) east of Spray | 1933 | |
| 3301 !330 | Weston-Elgin Highway1 !Weston-Elgin Highway | 2041 !OR 204 | OR 11 (Hwy 8) north of Weston | OR 82 (Hwy 10) in Elgin | 1933 | |
| 3311 !331 | Umatilla Mission Highway1 !Umatilla Mission Highway | 3311 !OR 331 | OR 11 (Hwy 8) northeast of Pendleton | I-84/US 30 (Hwy 6) southeast of Pendleton | 1957 | |
| 3321 !332 | Sunnyside-Umapine Highway1 !Sunnyside-Umapine Highway | 3321 !OR 332 | Washington | OR 11 (Hwy 8) north of Milton-Freewater | 1933 | |
| 3331 !333 | Hermiston Highway1 !Hermiston Highway | 2071 !OR 207 | US 730 (Hwy 2) west of Cold Springs | OR 207 (Hwy 320) southwest of Hermiston | 1933 | |
| 3341 !334 | Athena-Holdman Highway1 !Athena-Holdman Highway | 3341 !OR 334 | OR 37 (Hwy 36) north of Pendleton | OR 11 (Hwy 8) east of Athena | 1936 | |
| 3351 !335 | Havana-Helix Highway1 !Havana-Helix Highway | 3351 !OR 335 | Helix | OR 11 (Hwy 8) northeast of Pendleton | 1936 | |
| 3391 !339 | Freewater Highway1 !Freewater Highway | 3391 !OR 339 | Washington | OR 11 (Hwy 8) in Milton-Freewater | 1946 (1917 as 8) | |
| 3401 !340 | Medical Springs Highway1 !Medical Springs Highway | 2032 !OR 203 | OR 203/OR 237 (Hwy 66) in Union | I-84 (Hwy 6) north of Baker | 1933 | |
| 3411 !341 | Ukiah-Hilgard Highway1 !Ukiah-Hilgard Highway | 2441 !OR 244 | US 395 (Hwy 28) west of Ukiah | I-84/US 30 at Hilgard | 1933 | |
| 3421 !342 | Cove Highway1 !Cove Highway | 2371 !OR 237 | OR 82 (Hwy 10) in Island City | OR 203/OR 237 (Hwy 66) in Union | 1933 | |
| 3501 !350 | Little Sheep Creek Highway1 !Little Sheep Creek Highway | 3501 !OR 350 | OR 82 (Hwy 10), OR 351 (Hwy 351) in Joseph | Imnaha | 1933 | |
| 3511 !351 | Joseph-Wallowa Lake Highway1 !Joseph-Wallowa Lake Highway | 3511 !OR 351 | OR 82 (Hwy 10), OR 350 (Hwy 350) in Joseph | South of Wallowa Lake | 1937 | |
| 3601 !360 | Madras-Prineville Highway1 !Madras-Prineville Highway | 0265 !US 26 | US 26/US 97 (Hwy 4) south of Madras | US 26/OR 126 (Hwy 41) in Prineville | 1933 | |
| 3611 !361 | Culver Highway1 !Culver Highway | 3611 !OR 361 | US 26/US 97 (Hwy 4) in Madras | US 97 (Hwy 4) northeast of Culver | 1947 (1917 as 4) | |
| 3701 !370 | O'Neil Highway1 !O'Neil Highway | 3701 !OR 370 | US 97 (Hwy 4) north of Redmond | OR 126 (Hwy 41) in Prineville | 1933 | |
| 3721 !372 | Century Drive Highway1 !Century Drive Highway | N/A | Bend | Mount Bachelor ski area | 1933 | Signed as Forest Route 46 |
| 3801 !380 | Paulina Highway1 !Paulina Highway | 3801 !OR 380 | US 26 (Hwy 41) in Prineville | East of Paulina | 1933 | |
| 3901 !390 | Service Creek-Mitchell Highway1 !Service Creek-Mitchell Highway | 2074 !OR 207 | OR 19/OR 207 (Hwy 5) at Service Creek | US 26 (Hwy 41) in Mitchell | 1933 | |
| 4021 !402 | Kimberly-Long Creek Highway1 !Kimberly-Long Creek Highway | 4021 !OR 402 | OR 19 (Hwy 5) at Kimberly | US 395 (Hwy 28) in Long Creek | 1933 | |
| 4101 !410 | Sumpter Highway1 !Sumpter Highway | 4101 !OR 410 | Sumpter | OR 7 (Hwy 71) southeast of Sumpter | 1933 | |
| 4111 !411 | Logsden Road1 !Logsden Road | 4111 !OR 411 | OR 229 in Siletz | OR 180 in Nashville | Signed as Logsden Road. Not state-maintained. | |
| 4131 !413 | Halfway-Cornucopia Highway1 !Halfway-Cornucopia Highway | 4131 !OR 413 | Cornucopia | OR 86S (Hwy 12Y), OR 414 (Hwy 414) in Halfway | 1941 | |
| 4141 !414 | Pine Creek Highway1 !Pine Creek Highway | 4141 !OR 414 | OR 86S (Hwy 12Y), OR 413 (Hwy 413) in Halfway | OR 86 (Hwy 12) east of Halfway | 1941 | |
| 4151 !415 | Dooley Mountain Highway1 !Dooley Mountain Highway | 2451 !OR 245 | US 26 (Hwy 5) near Unity | OR 7 (Hwy 71) near Salisbury | 1980 (1917 as 13) | |
| 4201 !420 | Midland Highway1 !Midland Highway | N/A | Washburn Way south of Klamath Falls | US 97 (Hwy 4) southwest of Klamath Falls | 1933 | |
| 4221 !422 | Chiloquin Highway1 !Chiloquin Highway | 4221 !OR 422 | Modoc Point Road (former Hwy 427) south of Klamath Agency | US 97 (Hwy 4) southwest of Chiloquin | 1933 | |
| 422Y1 !422Y | Chiloquin Spur1 !Chiloquin Spur | 422S1 !OR 422S | OR 422 (Hwy 422) in Chiloquin | Chocktoot Street in Chiloquin | ||
| 4241 !424 | South Klamath Falls Highway1 !South Klamath Falls Highway | 1402 !OR 140 | US 97 (Hwy 4), OR 66/OR 140 (Hwy 21) south of Klamath Falls | OR 39/OR 140 (Hwy 50) southeast of Klamath Falls | 1987 | |
| 4261 !426 | Hatfield Highway1 !Hatfield Highway | 0392 !OR 39 | OR 39 (Hwy 50) east of Merrill | California | 1937 | |
| 4291 !429 | Crescent Lake Highway1 !Crescent Lake Highway | 4291 !OR 429 | OR 58 (Hwy 18) at Crescent Lake Junction | Lava Odell Road near Crescent Lake | 1951 | |
| 4311 !431 | Warner Highway1 !Warner Highway | 1404 !OR 140 | US 395/OR 140 (Hwy 19) north of Lakeview | Nevada | 1933 | |
| 4401 !440 | Frenchglen Highway1 !Frenchglen Highway | 2051 !OR 205 | OR 78 (Hwy 442) east of Burns | Roaring Springs Ranch | 1933 | |
| 4421 !442 | Steens Highway1 !Steens Highway | 0781 !OR 78 | US 20/US 395 (Hwy 7) in Burns | US 95 (Hwy 456) at Burns Junction | 1939 | |
| 4491 !449 | Huntington Highway1 !Huntington Highway | 0309 !US 30 | I-84/US 30 (Hwy 6) north of Lime | I-84/US 30 (Hwy 6) south of Huntington | 1968 (1917 as 6) | |
| 4501 !450 | Succor Creek Highway1 !Succor Creek Highway | 2012 !OR 201 | US 20/US 26/OR 201 (Hwy 7) at Nyssa | OR 201 (Hwy 450Y) west of Homedale, ID | 1933 | |
| 450Y1 !450Y | Parma Spur1 !Parma Spur | 4521 !OR 452 | OR 201 (Hwy 450) southwest of Adrian | Idaho | ||
| 450Y2 !450Y | Homedale Spur2 !Homedale Spur | 2013 !OR 201 | OR 201 (Hwy 450) west of Homedale, ID | Idaho | ||
| 4511 !451 | Vale-West Highway1 !Vale-West Highway | 4511 !OR 451 | US 20 (Hwy 7) southwest of Vale | US 20 (Hwy 7) in Vale | 1933 | |
| 4531 !453 | Adrian-Arena Valley Highway1 !Adrian-Arena Valley Highway | 4531 !OR 453 | OR 454 (Hwy 454) southeast of Adrian | Idaho | 1933 | |
| 4541 !454 | Adrian-Caldwell Highway1 !Adrian-Caldwell Highway | 4541 !OR 454 | OR 452 (Hwy 450 Spur) southeast of Adrian | Idaho | 1933 | |
| 4551 !455 | Olds Ferry-Ontario Highway1 !Olds Ferry-Ontario Highway | 2011 !OR 201 | I-84/US 30 (Hwy 6) south of Huntington | US 20/US 26/OR 201 (Hwy 7) at Cairo Junction | 1956 (1917 as 6) | |
| 455Y1 !455Y | Weiser Spur1 !Weiser Spur | 095S1 !US 95S | OR 201 (Hwy 450) at Weiser Junction | Idaho | ||
| 455Y2 !455Y | Payette Spur2 !Payette Spur | 0521 !OR 52 | OR 201 (Hwy 455) north of Ontario | Idaho | ||
| 455Y3 !455Y | Ontario Spur3 !Ontario Spur | 030B1 !US 30B | US 30B/OR 201 in Ontario | I-84/US 30 (Hwy 6) in Ontario | ||
| 455Y4 !455Y | Ontario Spur4 !Ontario Spur | 0309A !US 30 | I-84/US 30 (Hwy 6) in Ontario | Idaho | ||
| 4561 !456 | I.O.N. Highway1 !I.O.N. Highway | 0951 !US 95 | Idaho | Nevada | 1933 | |
| Gales Creek County Road | 0081 !OR 8 | OR 6 (Hwy 27) near Gales Creek | OR 8/OR 47 (Hwy 29, Hwy 102) in Forest Grove | Not state-maintained | ||
| Salem-Silverton County Road | 2133 !OR 213 | OR 213/OR 214 (Hwy 140) in Silverton | I-5/OR 99E (Hwy 1) in Salem | Not state-maintained |
Read more about this topic: List Of Named State Highways In Oregon
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