Hertfordshire
| District | Successor |
|---|---|
| Baldock Urban District | North Hertfordshire |
| Berkhamsted Rural District | Dacorum |
| Berkhamsted Urban District | Dacorum |
| Bishop's Stortford Urban District | East Hertfordshire |
| Braughing Rural District | East Hertfordshire |
| Bushey Urban District | Hertsmere |
| Cheshunt Urban District | Broxbourne |
| Chorleywood Urban District | Three Rivers |
| Elstree Rural District | Hertsmere |
| Harpenden Urban District | St Albans |
| Hatfield Rural District | Welwyn Hatfield |
| Hemel Hempstead Borough | Dacorum |
| Hemel Hempstead Rural District | Dacorum |
| Hertford Borough | East Hertfordshire |
| Hertford Rural District | Stevenage, East Hertfordshire |
| Hitchin Rural District | North Hertfordshire |
| Hitchin Urban District | North Hertfordshire |
| Hoddesdon Urban District | Broxbourne |
| Letchworth Urban District | North Hertfordshire |
| Potters Bar Urban District | Hertsmere |
| Rickmansworth Urban District | Three Rivers |
| Royston Urban District | North Hertfordshire |
| Sawbridgeworth Urban District | East Hertfordshire |
| St Albans Borough | St Albans |
| St Albans Rural District | St Albans, Dacorum |
| Stevenage Urban District | Stevenage |
| Tring Urban District | Dacorum |
| Ware Rural District | East Hertfordshire |
| Ware Urban District | East Hertfordshire |
| Watford Borough | Watford |
| Watford Rural District | Hertsmere, Dacorum, Three Rivers |
| Welwyn Rural District | Welwyn Hatfield |
| Welwyn Garden City Urban District | Welwyn Hatfield |
There were no county boroughs.
Read more about this topic: List Of Rural And Urban Districts In England In 1973