AL1 4 is a postcode sector in St Albans, UK. Below is a complete list of AL1 4 Postcodes (Active). AL1 4 postcode sector comprises of 230 active postcodes. AL1 4 sector has a population of 9640, and it has 3555 properties in the region.
| Population | 9640 |
| Addresses / Property Count | 3555 |
| Active Postcodes | 230 |
| Nearby Postcode Districts | 9 |
| Nearby Postcode Sectors | 5 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| AL1 4TW | 51.75638600 | -0.30852700 | 9 | 34 | 516846 | 207764 |
| AL1 4TX | 51.75764800 | -0.30998700 | 8 | 19 | 516742 | 207902 |
| AL1 4TY | 51.75658000 | -0.31014300 | 22 | 52 | 516734 | 207783 |
| AL1 4TZ | 51.75416300 | -0.30966800 | 17 | 54 | 516773 | 207515 |
| AL1 4UA | 51.75384500 | -0.30815900 | 8 | 22 | 516878 | 207482 |
| AL1 4UB | 51.75350500 | -0.30889600 | 19 | 59 | 516828 | 207443 |
| AL1 4UD | 51.75369200 | -0.31067100 | 10 | 23 | 516705 | 207461 |
| AL1 4UE | 51.75345000 | -0.31070900 | 13 | 29 | 516703 | 207434 |
| AL1 4UN | 51.75208300 | -0.30884800 | 62 | 134 | 516835 | 207285 |
| AL1 4UR | 51.76693000 | -0.31958200 | 16 | 43 | 516056 | 208919 |
| AL1 4UT | 51.76683000 | -0.31592500 | 24 | 63 | 516309 | 208914 |
| AL1 4UU | 51.76639400 | -0.31292100 | 13 | 40 | 516517 | 208870 |
| AL1 4UX | 51.76553000 | -0.31037400 | 24 | 80 | 516695 | 208778 |
| AL1 4UZ | 51.76274700 | -0.30753600 | 3 | 10 | 516898 | 208473 |
| AL1 4XA | 51.76109000 | -0.30738100 | 16 | 45 | 516913 | 208289 |
| AL1 4XB | 51.76112700 | -0.30803200 | 16 | 52 | 516868 | 208292 |
| AL1 4XD | 51.76295400 | -0.30816600 | 5 | 13 | 516854 | 208495 |
| AL1 4XE | 51.76462000 | -0.30962500 | 22 | 74 | 516749 | 208678 |
| AL1 4XF | 51.76603700 | -0.31312300 | 7 | 25 | 516504 | 208830 |
| AL1 4XG | 51.76646300 | -0.31709300 | 27 | 70 | 516229 | 208871 |
| AL1 4XP | 51.75350500 | -0.30579500 | 10 | 31 | 517042 | 207448 |
| AL1 4XR | 51.75493400 | -0.30571300 | 24 | 65 | 517044 | 207607 |
| AL1 4XS | 51.75352200 | -0.30511400 | 4 | 8 | 517089 | 207451 |
| AL1 4XT | 51.75575100 | -0.30688500 | 4 | 9 | 516961 | 207696 |
| AL1 4XU | 51.75732600 | -0.30698500 | 34 | 83 | 516950 | 207871 |
| AL1 4XX | 51.75917800 | -0.30758300 | 10 | 32 | 516904 | 208076 |
| AL1 4XY | 51.75927700 | -0.30699900 | 6 | 20 | 516944 | 208088 |
| AL1 4XZ | 51.75741600 | -0.30638800 | 32 | 98 | 516991 | 207882 |
| AL1 4YA | 51.75489700 | -0.30504800 | 23 | 66 | 517090 | 207604 |
| AL1 4ZG | 51.74765000 | -0.30197300 | N/A | N/A | 517321 | 206803 |