Welwyn Hatfield
18 postcode sectors mapped mainly to Welwyn Hatfield. Choose a district or browse the guides below. These are postcode sectors, not named neighbourhood boundaries.
Postcode districts
Area guides
18 sectors
- AL10 0Near Hatfield
- AL10 1Near Hatfield
- AL10 8Near Hatfield
- AL10 9Near Hatfield
- AL6 0Near Welwyn
- AL6 9Near Welwyn Garden City
- AL7 1Near Digswell
- AL7 2Near Welwyn Garden City
- AL7 3Near Welwyn Garden City
- AL7 4Near Hatfield
- AL7 9Near Welwyn Garden City
- AL8 6Near Welwyn Garden City
- AL8 7Near Welwyn Garden City
- AL9 5Near Hatfield
- AL9 6Near Hatfield
- AL9 7Near Welham Green
- EN6 1Near Little Heath
- EN6 4Near Northaw
Authority grouping uses mapped sector boundaries from the Office for National Statistics, December 2025. It measures boundary area, not the number of addresses or residents. Guide names describe a place near the approximate sector centre.