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| Street | Route | Communities | Landmarks | Notes |
|---|---|---|---|---|
| Lake Avenue | Falls Road to Chinquapin Parkway (in Baltimore city) | See also Lake Avenue entry in List of streets in Baltimore, Maryland | ||
| Lakeside Boulevard | Painters Mill Road to Dolfield Road | Owings Mills | New Town High School | |
| Liberty Road | US-15 (in Frederick) to Swan Drive (in Baltimore city) | Randallstown Rockdale Milford Mill Lochearn |
Exit 18 off Baltimore Beltway. Known as Liberty Heights Avenue in Baltimore City. | |
| Loch Raven Boulevard | 24th Street (in Baltimore city) to Cromwell Bridge Road | Towson | Exit 29 of Baltimore Beltway | |
| Lyons Mill Road | Liberty Road to Painters Mill Road | Owings Mills Randallstown |
Deer Park Elementary School |
Read more about this topic: List Of Roads In Baltimore County, Maryland