BT21 is a postcode district in Ards and North Down, UK. Below is a complete list of BT21 Postcodes (Active). BT21 postcode district comprises of 218 active postcodes and 1 postcode sectors. BT21 district has a population of 7814, and it has 3323 properties in the region.
| Population | 7814 |
| Addresses / Property Count | 3323 |
| Active Postcodes | 218 |
| Nearby Postcode Districts | 79 |
| Active Postcode Sectors | 1 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| BT21 0AA | 54.64234600 | -5.53709700 | 7 | 18 | 171868 | 533219 |
| BT21 0AB | 54.64248200 | -5.53668600 | 12 | 16 | 171895 | 533232 |
| BT21 0AD | 54.64279300 | -5.53741100 | N/A | N/A | 171850 | 533269 |
| BT21 0AE | 54.64273900 | -5.53609700 | 7 | 27 | 171935 | 533259 |
| BT21 0AF | 54.64234200 | -5.53553200 | N/A | N/A | 171969 | 533213 |
| BT21 0AG | 54.64196100 | -5.53536900 | N/A | N/A | 171977 | 533170 |
| BT21 0AH | 54.64178900 | -5.53663500 | 4 | 4 | 171895 | 533155 |
| BT21 0AJ | 54.64187500 | -5.53734200 | 7 | 23 | 171850 | 533167 |
| BT21 0AL | 54.64122200 | -5.54012400 | 2 | 13 | 171666 | 533103 |
| BT21 0AN | 54.64043800 | -5.54179800 | 49 | 115 | 171554 | 533022 |
| BT21 0AP | 54.63480900 | -5.55666800 | 10 | 26 | 170563 | 532444 |
| BT21 0AQ | 54.64138000 | -5.53597800 | 11 | 27 | 171935 | 533107 |
| BT21 0AR | 54.63852900 | -5.54467100 | 39 | 69 | 171358 | 532819 |
| BT21 0AS | 54.63847100 | -5.54538700 | 14 | 31 | 171312 | 532815 |
| BT21 0AT | 54.63789700 | -5.54543700 | 60 | 148 | 171305 | 532751 |
| BT21 0AU | 54.63928800 | -5.54488800 | 36 | 77 | 171348 | 532904 |
| BT21 0AW | 54.64002100 | -5.54472000 | 23 | 37 | 171363 | 532985 |
| BT21 0AX | 54.63932800 | -5.54285700 | 32 | 50 | 171480 | 532902 |
| BT21 0AY | 54.63894600 | -5.54397900 | 35 | 81 | 171405 | 532863 |
| BT21 0AZ | 54.63875500 | -5.54253500 | 13 | 37 | 171497 | 532837 |
| BT21 0BA | 54.63817000 | -5.54294200 | 36 | 93 | 171468 | 532773 |
| BT21 0BB | 54.63935600 | -5.54206500 | 29 | 69 | 171531 | 532902 |
| BT21 0BD | 54.63975200 | -5.53807500 | 24 | 48 | 171790 | 532933 |
| BT21 0BE | 54.63783000 | -5.53772600 | 51 | 97 | 171802 | 532718 |
| BT21 0BF | 54.63668400 | -5.54410000 | 60 | 130 | 171385 | 532612 |
| BT21 0BG | 54.63780600 | -5.54005100 | 41 | 110 | 171652 | 532723 |
| BT21 0BH | 54.63866400 | -5.53852800 | N/A | N/A | 171755 | 532814 |
| BT21 0BJ | 54.63444900 | -5.54243800 | 19 | 47 | 171479 | 532358 |
| BT21 0BL | 54.63928600 | -5.53593400 | 26 | 60 | 171926 | 532874 |
| BT21 0BN | 54.63708100 | -5.54240300 | 48 | 111 | 171496 | 532650 |
| BT21 0BP | 54.63893000 | -5.54630400 | 12 | 16 | 171255 | 532869 |
| BT21 0BQ | 54.63569500 | -5.54052000 | 33 | 75 | 171610 | 532490 |
| BT21 0BS | 54.64104000 | -5.53914300 | 25 | 29 | 171729 | 533080 |
| BT21 0BU | 54.64053600 | -5.53601300 | N/A | N/A | 171928 | 533014 |
| BT21 0BW | 54.63729300 | -5.54088800 | 5 | 10 | 171595 | 532669 |
| BT21 0DA | 54.64281600 | -5.53854000 | 24 | 61 | 171778 | 533275 |
| BT21 0DB | 54.64275300 | -5.53942700 | 8 | 10 | 171720 | 533271 |
| BT21 0DE | 54.64320000 | -5.53885800 | 10 | 14 | 171759 | 533319 |
| BT21 0DF | 54.64313800 | -5.53804100 | 10 | 18 | 171812 | 533310 |
| BT21 0DG | 54.64380800 | -5.53871300 | 30 | 58 | 171772 | 533386 |
| BT21 0DH | 54.64537500 | -5.54154600 | 17 | 32 | 171598 | 533570 |
| BT21 0DJ | 54.64492500 | -5.54104700 | 9 | 11 | 171628 | 533518 |
| BT21 0DN | 54.64465100 | -5.54126500 | 21 | 30 | 171612 | 533488 |
| BT21 0DP | 54.64557300 | -5.54241800 | 27 | 56 | 171543 | 533595 |
| BT21 0DQ | 54.64502500 | -5.54066900 | 7 | 17 | 171653 | 533528 |
| BT21 0DR | 54.64630500 | -5.54308600 | 25 | 63 | 171504 | 533678 |
| BT21 0DS | 54.64647300 | -5.54072100 | 16 | 29 | 171657 | 533689 |
| BT21 0DT | 54.64730100 | -5.54212700 | 6 | 16 | 171571 | 533786 |
| BT21 0DU | 54.64495300 | -5.54555400 | 9 | 24 | 171337 | 533536 |
| BT21 0DW | 54.64462200 | -5.54205700 | 44 | 82 | 171561 | 533488 |