CM21 is a postcode district in East Hertfordshire, UK. Below is a complete list of CM21 Postcodes (Active). CM21 postcode district comprises of 315 active postcodes and 3 postcode sectors. CM21 district has a population of 10865, and it has 4686 properties in the region.
| Population | 10865 |
| Addresses / Property Count | 4686 |
| Active Postcodes | 315 |
| Nearby Postcode Districts | 27 |
| Active Postcode Sectors | 3 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| CM21 0JJ | 51.80788100 | 0.12225200 | 5 | 12 | 546410 | 214268 |
| CM21 0JL | 51.80925800 | 0.12033200 | 7 | 19 | 546273 | 214417 |
| CM21 0JN | 51.80984900 | 0.12246300 | 4 | 10 | 546418 | 214487 |
| CM21 0JP | 51.81087500 | 0.12287400 | 8 | 22 | 546443 | 214602 |
| CM21 0JQ | 51.80679200 | 0.12889100 | 6 | 19 | 546871 | 214160 |
| CM21 0JR | 51.81411300 | 0.12288100 | 5 | 17 | 546433 | 214962 |
| CM21 0JT | 51.80886200 | 0.12285200 | 25 | 63 | 546448 | 214378 |
| CM21 0JU | 51.81437100 | 0.12042400 | 1 | 4 | 546263 | 214986 |
| CM21 0JW | 51.81031400 | 0.12251100 | 2 | 6 | 546420 | 214539 |
| CM21 0JX | 51.81136900 | 0.11336300 | 2 | 3 | 545786 | 214638 |
| CM21 0JY | 51.81132800 | 0.11363600 | 2 | 7 | 545805 | 214634 |
| CM21 0JZ | 51.81163400 | 0.10911000 | 2 | 5 | 545492 | 214659 |
| CM21 0LA | 51.81141000 | 0.09659700 | 7 | 13 | 544630 | 214609 |
| CM21 0LB | 51.81774700 | 0.10076500 | 8 | 18 | 544897 | 215322 |
| CM21 0LD | 51.81902300 | 0.11037200 | 5 | 14 | 545555 | 215483 |
| CM21 0LE | 51.82484100 | 0.10322500 | 2 | 6 | 545044 | 216116 |
| CM21 0LF | 51.81938600 | 0.12169200 | 3 | 11 | 546334 | 215546 |
| CM21 0LH | 51.81647200 | 0.12107400 | 1 | 2 | 546301 | 215221 |
| CM21 0LJ | 51.81831400 | 0.12568700 | 5 | 10 | 546613 | 215435 |
| CM21 0LL | 51.82483600 | 0.13097200 | 6 | 19 | 546956 | 216171 |
| CM21 0LP | 51.82482100 | 0.10685200 | 3 | 8 | 545294 | 216121 |
| CM21 0LQ | 51.83218600 | 0.11898500 | 1 | 2 | 546106 | 216964 |
| CM21 0LR | 51.83064500 | 0.11017500 | 24 | 56 | 545504 | 216775 |
| CM21 0LS | 51.83285900 | 0.11155600 | 9 | 20 | 545592 | 217024 |
| CM21 0LT | 51.84063000 | 0.11594100 | 6 | 13 | 545869 | 217897 |
| CM21 0LU | 51.83502000 | 0.11087300 | 10 | 22 | 545538 | 217263 |
| CM21 0LX | 51.83387200 | 0.13212700 | 8 | 27 | 547006 | 217178 |
| CM21 0LY | 51.82408900 | 0.11666000 | N/A | N/A | 545972 | 216059 |
| CM21 0NA | 51.80780600 | 0.12352800 | 14 | 22 | 546498 | 214262 |
| CM21 0NB | 51.83438700 | 0.14184400 | 8 | 21 | 547674 | 217255 |
| CM21 0ND | 51.82678000 | 0.14729200 | 3 | 11 | 548074 | 216420 |
| CM21 0NG | 51.82588000 | 0.14933900 | N/A | N/A | 548218 | 216324 |
| CM21 0RL | 51.79865400 | 0.12739000 | 36 | 88 | 546794 | 213252 |
| CM21 1AP | 51.81239700 | 0.15933100 | N/A | N/A | 548951 | 214845 |
| CM21 1BB | 51.81239700 | 0.15933100 | N/A | N/A | 548951 | 214845 |
| CM21 1BL | 51.81240300 | 0.15935800 | N/A | N/A | 548953 | 214846 |
| CM21 1BS | 51.81240300 | 0.15935800 | N/A | N/A | 548953 | 214846 |
| CM21 1BT | 51.81240300 | 0.15935800 | N/A | N/A | 548953 | 214846 |
| CM21 1BU | 51.81240300 | 0.15935800 | N/A | N/A | 548953 | 214846 |
| CM21 1BX | 51.81240300 | 0.15935800 | N/A | N/A | 548953 | 214846 |
| CM21 9AA | 51.81262500 | 0.14885300 | N/A | N/A | 548228 | 214849 |
| CM21 9AB | 51.81234200 | 0.15153800 | 3 | 7 | 548414 | 214823 |
| CM21 9AD | 51.81180300 | 0.15235100 | 1 | 3 | 548472 | 214765 |
| CM21 9AE | 51.81221400 | 0.15102100 | 2 | 2 | 548379 | 214808 |
| CM21 9AG | 51.81170300 | 0.15104300 | 8 | 23 | 548382 | 214751 |
| CM21 9AH | 51.81128500 | 0.15180700 | 4 | 7 | 548436 | 214706 |
| CM21 9AJ | 51.81193000 | 0.15193900 | 6 | 14 | 548443 | 214778 |
| CM21 9AN | 51.81238900 | 0.14946500 | 19 | 40 | 548271 | 214824 |
| CM21 9AQ | 51.81254600 | 0.14774700 | N/A | N/A | 548152 | 214838 |
| CM21 9AR | 51.81274900 | 0.14930600 | 13 | 25 | 548259 | 214864 |