The AL4 postcode district is a postal district with a population of 27,268 and is within the AL St Albans postcode area.
The area of the AL4 postcode district is 19.13 square miles which is 49.54 square kilometres or 12,241.40 acres.
There are 3 postcode sectors within the AL4 district.
| Town | Type |
|---|---|
| Amwell | Hamlet |
| Blackmore End | Village |
| Coleman Green | Hamlet |
| Colney Heath | Village |
| Gustard Wood | Village |
| Lea Valley | Village |
| Nomansland | Hamlet |
| Town | Type |
|---|---|
| Sandridge | Village |
| Sleapshyde | Village |
| Smallford | Village |
| St Albans | City |
| The Folly | Village |
| Tyttenhanger | Village |
| Wheathampstead | Village |
| Postcode Sector | Delivery Office |
|---|---|
| AL4 0 | St. Albans Delivery Office |
| AL4 8 | St. Albans Delivery Office |
| AL4 9 | St. Albans Delivery Office |
| A | L | 4 | - | X | X | X |
| A | L | 4 | Space | Numeric | Letter | Letter |
