PO21 4 is a postcode sector in Arun, UK. Below is a complete list of PO21 4 Postcodes (Active). PO21 4 postcode sector comprises of 271 active postcodes. PO21 4 sector has a population of 7273, and it has 3544 properties in the region.
| Population | 7273 |
| Addresses / Property Count | 3544 |
| Active Postcodes | 271 |
| Nearby Postcode Districts | 34 |
| Nearby Postcode Sectors | 5 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| PO21 4UP | 50.76971700 | -0.74313600 | 14 | 24 | 488727 | 97434 |
| PO21 4UR | 50.76912200 | -0.74133700 | 33 | 69 | 488855 | 97370 |
| PO21 4UT | 50.76884400 | -0.74230800 | 9 | 14 | 488787 | 97338 |
| PO21 4UU | 50.76850600 | -0.74345200 | 33 | 55 | 488707 | 97299 |
| PO21 4UW | 50.76987400 | -0.74026700 | 11 | 37 | 488929 | 97455 |
| PO21 4UX | 50.76913300 | -0.74407300 | 18 | 36 | 488662 | 97368 |
| PO21 4WA | 50.78394700 | -0.67121600 | N/A | N/A | 493770 | 99105 |
| PO21 4XA | 50.77102600 | -0.73535800 | 11 | 20 | 489273 | 97589 |
| PO21 4XB | 50.76998200 | -0.73610900 | 9 | 22 | 489222 | 97472 |
| PO21 4XD | 50.77079100 | -0.73441400 | 56 | 102 | 489340 | 97564 |
| PO21 4XE | 50.77137700 | -0.73370300 | 6 | 9 | 489389 | 97630 |
| PO21 4XF | 50.77078300 | -0.73276900 | 15 | 26 | 489456 | 97565 |
| PO21 4XH | 50.77914900 | -0.70922400 | 11 | 17 | 491100 | 98524 |
| PO21 4XJ | 50.78033800 | -0.70783000 | 6 | 9 | 491196 | 98658 |
| PO21 4XL | 50.78046700 | -0.70723000 | 14 | 35 | 491238 | 98673 |
| PO21 4XN | 50.77966300 | -0.70614600 | 16 | 37 | 491316 | 98585 |
| PO21 4XP | 50.77998800 | -0.70459100 | 16 | 41 | 491425 | 98623 |
| PO21 4XQ | 50.77965800 | -0.70810400 | 5 | 7 | 491178 | 98582 |
| PO21 4XR | 50.77905700 | -0.70579400 | 21 | 41 | 491342 | 98518 |
| PO21 4XW | 50.78031600 | -0.70584400 | 11 | 27 | 491336 | 98658 |
| PO21 4XX | 50.76789500 | -0.74263200 | 5 | 11 | 488766 | 97232 |