CB21 4 is a postcode sector in South Cambridgeshire, UK. Below is a complete list of CB21 4 Postcodes (Active). CB21 4 postcode sector comprises of 240 active postcodes. CB21 4 sector has a population of 8495, and it has 3413 properties in the region.
| Population | 8495 |
| Addresses / Property Count | 3413 |
| Active Postcodes | 240 |
| Nearby Postcode Districts | 15 |
| Nearby Postcode Sectors | 2 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| CB21 4AA | 52.09838100 | 0.28836200 | 8 | 26 | 556844 | 246919 |
| CB21 4AB | 52.10059300 | 0.28002100 | N/A | N/A | 556265 | 247147 |
| CB21 4AD | 52.13212700 | 0.32340700 | 11 | 30 | 559124 | 250748 |
| CB21 4AE | 52.09681300 | 0.28669100 | 4 | 6 | 556735 | 246741 |
| CB21 4AF | 52.09997900 | 0.27750700 | 0 | 35 | 556095 | 247073 |
| CB21 4AG | 52.09543700 | 0.27273600 | N/A | N/A | 555784 | 246558 |
| CB21 4AH | 52.09810700 | 0.28808500 | N/A | N/A | 556826 | 246888 |
| CB21 4AL | 52.13080200 | 0.31921700 | N/A | N/A | 558842 | 250592 |
| CB21 4AN | 52.13055300 | 0.31859100 | N/A | N/A | 558800 | 250562 |
| CB21 4AP | 52.13133800 | 0.31892400 | N/A | N/A | 558820 | 250650 |
| CB21 4AQ | 52.15035100 | 0.26980000 | N/A | N/A | 555392 | 252659 |
| CB21 4AR | 52.13259200 | 0.31003100 | N/A | N/A | 558207 | 250771 |
| CB21 4AS | 52.13237100 | 0.30383900 | N/A | N/A | 557784 | 250732 |
| CB21 4AT | 52.09525700 | 0.29519500 | N/A | N/A | 557323 | 246586 |
| CB21 4AW | 52.09787600 | 0.28721100 | N/A | N/A | 556767 | 246860 |
| CB21 4AX | 52.06462200 | 0.37716700 | N/A | N/A | 563049 | 243360 |
| CB21 4AY | 52.09778000 | 0.29306100 | N/A | N/A | 557168 | 246862 |
| CB21 4AZ | 52.09707900 | 0.29350700 | N/A | N/A | 557201 | 246785 |
| CB21 4BA | 52.09656000 | 0.29340800 | N/A | N/A | 557196 | 246727 |
| CB21 4BB | 52.12109100 | 0.38763800 | N/A | N/A | 563560 | 249664 |
| CB21 4BD | 52.12109100 | 0.38763800 | N/A | N/A | 563560 | 249664 |
| CB21 4BE | 52.13304500 | 0.30342100 | N/A | N/A | 557753 | 250807 |
| CB21 4DG | 52.13229900 | 0.32014300 | 1 | 4 | 558900 | 250760 |
| CB21 4DJ | 52.13173600 | 0.31722000 | 32 | 85 | 558702 | 250691 |
| CB21 4DP | 52.13085900 | 0.31746700 | 26 | 46 | 558722 | 250594 |
| CB21 4DS | 52.13316100 | 0.31656400 | 8 | 16 | 558652 | 250848 |
| CB21 4DT | 52.13063300 | 0.31568700 | 15 | 44 | 558601 | 250565 |
| CB21 4DU | 52.12627800 | 0.31264200 | 4 | 10 | 558408 | 250074 |
| CB21 4DW | 52.13228600 | 0.31761400 | 23 | 48 | 558727 | 250753 |
| CB21 4DX | 52.13461600 | 0.32076000 | 29 | 73 | 558934 | 251019 |
| CB21 4DY | 52.13188400 | 0.32156800 | 12 | 35 | 558999 | 250717 |
| CB21 4DZ | 52.13035500 | 0.32343200 | 52 | 135 | 559132 | 250551 |
| CB21 4EA | 52.13057500 | 0.32046200 | 35 | 66 | 558928 | 250569 |
| CB21 4EB | 52.13025200 | 0.32499000 | 22 | 46 | 559239 | 250543 |
| CB21 4ED | 52.12930200 | 0.32530600 | 6 | 14 | 559264 | 250438 |
| CB21 4EE | 52.12916900 | 0.32291700 | 18 | 46 | 559101 | 250418 |
| CB21 4EF | 52.13129200 | 0.32489800 | 24 | 55 | 559229 | 250658 |
| CB21 4EG | 52.13177700 | 0.32336000 | 46 | 101 | 559122 | 250709 |
| CB21 4EH | 52.12966500 | 0.32102900 | 18 | 49 | 558970 | 250469 |
| CB21 4EJ | 52.12996100 | 0.31968500 | 12 | 33 | 558877 | 250499 |
| CB21 4EL | 52.13292100 | 0.32187000 | 8 | 25 | 559016 | 250833 |
| CB21 4EN | 52.07741900 | 0.31325300 | N/A | N/A | 558623 | 244642 |
| CB21 4EP | 52.13307600 | 0.31145900 | 52 | 117 | 558303 | 250827 |
| CB21 4EQ | 52.13029100 | 0.32211300 | 26 | 72 | 559042 | 250541 |
| CB21 4ER | 52.13251800 | 0.31359300 | 36 | 64 | 558451 | 250770 |
| CB21 4ES | 52.13378300 | 0.31415600 | 12 | 27 | 558485 | 250912 |
| CB21 4EU | 52.13402100 | 0.31257500 | 43 | 108 | 558376 | 250935 |
| CB21 4EW | 52.13509800 | 0.30672700 | 12 | 29 | 557972 | 251042 |
| CB21 4EZ | 52.13520300 | 0.30594400 | 23 | 52 | 557918 | 251052 |
| CB21 4FD | 52.09718900 | 0.27187600 | 3 | 12 | 555719 | 246751 |