SO21 3 is a postcode sector in Test Valley, UK. Below is a complete list of SO21 3 Postcodes (Active). SO21 3 postcode sector comprises of 241 active postcodes. SO21 3 sector has a population of 6157, and it has 2454 properties in the region.
| Population | 6157 |
| Addresses / Property Count | 2454 |
| Active Postcodes | 241 |
| Nearby Postcode Districts | 30 |
| Nearby Postcode Sectors | 3 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| SO21 3QS | 51.18410500 | -1.36329300 | N/A | N/A | 444598 | 142956 |
| SO21 3QX | 51.16578300 | -1.23548500 | N/A | N/A | 453552 | 141004 |
| SO21 3QY | 51.16559200 | -1.23514500 | 7 | 15 | 453576 | 140983 |
| SO21 3QZ | 51.15396600 | -1.33864300 | 5 | 15 | 446351 | 139620 |
| SO21 3RA | 51.16267400 | -1.33605900 | 10 | 18 | 446523 | 140590 |
| SO21 3RB | 51.17093400 | -1.34181900 | 11 | 34 | 446112 | 141505 |
| SO21 3RD | 51.17062600 | -1.35100700 | 5 | 13 | 445470 | 141465 |
| SO21 3RE | 51.16844800 | -1.35396900 | 3 | 7 | 445265 | 141221 |
| SO21 3RF | 51.16734000 | -1.37515200 | 7 | 12 | 443785 | 141085 |
| SO21 3RG | 51.16665300 | -1.37614800 | 57 | 126 | 443716 | 141008 |
| SO21 3RH | 51.16562800 | -1.37958000 | 20 | 51 | 443477 | 140892 |
| SO21 3RJ | 51.16220000 | -1.37905400 | 3 | 9 | 443517 | 140511 |
| SO21 3RL | 51.16616400 | -1.37882900 | 15 | 43 | 443529 | 140952 |
| SO21 3RN | 51.16710000 | -1.37981800 | 2 | 6 | 443459 | 141056 |
| SO21 3RP | 51.16731100 | -1.38067400 | 2 | 3 | 443399 | 141078 |
| SO21 3RQ | 51.16671500 | -1.37836500 | 8 | 27 | 443561 | 141014 |
| SO21 3RR | 51.17001600 | -1.38116600 | 5 | 11 | 443362 | 141379 |
| SO21 3RS | 51.16931000 | -1.37853000 | 6 | 18 | 443547 | 141302 |
| SO21 3RT | 51.16853000 | -1.37896900 | 6 | 16 | 443517 | 141215 |
| SO21 3RU | 51.17217300 | -1.36829300 | 49 | 132 | 444260 | 141627 |
| SO21 3RW | 51.16718900 | -1.37970300 | 2 | 5 | 443467 | 141065 |
| SO21 3RX | 51.17129200 | -1.36760400 | 6 | 14 | 444309 | 141529 |
| SO21 3RY | 51.16949700 | -1.36895900 | 44 | 131 | 444216 | 141329 |
| SO21 3RZ | 51.16940700 | -1.36811600 | 14 | 34 | 444275 | 141319 |
| SO21 3SA | 51.17033100 | -1.36934800 | 4 | 14 | 444188 | 141421 |
| SO21 3SB | 51.16888800 | -1.37278600 | 29 | 86 | 443949 | 141259 |
| SO21 3SD | 51.16970300 | -1.37134400 | 10 | 21 | 444049 | 141350 |
| SO21 3SE | 51.16839900 | -1.37463700 | 5 | 15 | 443820 | 141203 |
| SO21 3SF | 51.15284100 | -1.33838800 | 10 | 22 | 446370 | 139495 |
| SO21 3SG | 51.12274600 | -1.32607200 | 20 | 54 | 447262 | 136156 |
| SO21 3SH | 51.12239400 | -1.32519200 | 13 | 36 | 447324 | 136117 |
| SO21 3SJ | 51.15213300 | -1.33169200 | 2 | 9 | 446839 | 139421 |
| SO21 3SL | 51.15222600 | -1.33304900 | 9 | 28 | 446744 | 139430 |
| SO21 3SN | 51.12322600 | -1.32662200 | 10 | 28 | 447223 | 136209 |
| SO21 3SP | 51.19308800 | -1.23242800 | N/A | N/A | 453734 | 144043 |
| SO21 3SR | 51.15074800 | -1.26638700 | 24 | 78 | 451408 | 139310 |
| SO21 3ST | 51.15104000 | -1.26556800 | N/A | N/A | 451465 | 139343 |
| SO21 3SU | 51.12203800 | -1.32341000 | N/A | N/A | 447449 | 136079 |
| SO21 3TA | 51.12052000 | -1.33150500 | 6 | 16 | 446884 | 135905 |
| SO21 3XA | 51.15683500 | -1.22721100 | 6 | 13 | 454141 | 140015 |
| SO21 3XX | 51.15286300 | -1.33751500 | N/A | N/A | 446431 | 139498 |