CO3 is a postcode district in Colchester, UK. Below is a complete list of CO3 Postcodes (Active). CO3 postcode district comprises of 860 active postcodes and 6 postcode sectors. CO3 district has a population of 28502, and it has 12063 properties in the region.
| Population | 28502 |
| Addresses / Property Count | 12063 |
| Active Postcodes | 860 |
| Nearby Postcode Districts | 15 |
| Active Postcode Sectors | 6 |
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| Postcode | Latitude | Longitude | Households | Population | Easting | Northing |
|---|---|---|---|---|---|---|
| CO3 3ST | 51.88823200 | 0.87044500 | 14 | 36 | 597631 | 224969 |
| CO3 3SU | 51.88842700 | 0.87313200 | 4 | 7 | 597815 | 224998 |
| CO3 3SX | 51.88596500 | 0.86790300 | 6 | 13 | 597466 | 224710 |
| CO3 3SY | 51.88700700 | 0.87017800 | 19 | 53 | 597618 | 224832 |
| CO3 3SZ | 51.88808800 | 0.86786400 | 26 | 65 | 597454 | 224946 |
| CO3 3TA | 51.88958200 | 0.86758000 | 4 | 9 | 597428 | 225111 |
| CO3 3TB | 51.88959300 | 0.86923900 | 3 | 5 | 597542 | 225117 |
| CO3 3TD | 51.89045200 | 0.86829000 | 7 | 10 | 597473 | 225210 |
| CO3 3TE | 51.89054600 | 0.86556400 | 6 | 29 | 597285 | 225213 |
| CO3 3TF | 51.89064800 | 0.86392800 | 6 | 7 | 597172 | 225220 |
| CO3 3TJ | 51.89103800 | 0.86530400 | 10 | 26 | 597265 | 225267 |
| CO3 3TL | 51.89043300 | 0.86501900 | 7 | 13 | 597248 | 225199 |
| CO3 3TN | 51.88176300 | 0.88048200 | 13 | 37 | 598350 | 224277 |
| CO3 3TP | 51.88190900 | 0.87610200 | 4 | 10 | 598048 | 224281 |
| CO3 3TQ | 51.88951900 | 0.91609400 | N/A | N/A | 600766 | 225237 |
| CO3 3TR | 51.88181700 | 0.87829100 | 22 | 59 | 598199 | 224277 |
| CO3 3TS | 51.88125500 | 0.87738300 | 14 | 33 | 598139 | 224212 |
| CO3 3TT | 51.87999300 | 0.87599500 | 32 | 98 | 598049 | 224068 |
| CO3 3TU | 51.88029000 | 0.87783000 | 14 | 31 | 598174 | 224106 |
| CO3 3TW | 51.88215800 | 0.87940300 | 16 | 42 | 598274 | 224318 |
| CO3 3TX | 51.88063200 | 0.87708200 | 6 | 19 | 598121 | 224142 |
| CO3 3TY | 51.88129400 | 0.87943500 | 33 | 90 | 598280 | 224222 |
| CO3 3TZ | 51.88094100 | 0.87807500 | 20 | 61 | 598188 | 224179 |
| CO3 3UA | 51.87943400 | 0.87792100 | 3 | 16 | 598184 | 224011 |
| CO3 3UB | 51.87914800 | 0.87745200 | 12 | 32 | 598153 | 223978 |
| CO3 3UD | 51.87904400 | 0.87657300 | 4 | 13 | 598093 | 223964 |
| CO3 3UE | 51.87907200 | 0.87555700 | 5 | 13 | 598023 | 223964 |
| CO3 3UF | 51.89010900 | 0.86467800 | 22 | 34 | 597226 | 225162 |
| CO3 3UJ | 51.88981500 | 0.86529900 | 11 | 19 | 597270 | 225131 |
| CO3 3UL | 51.88686700 | 0.87772700 | 14 | 66 | 598138 | 224837 |
| CO3 3UN | 51.88639400 | 0.88015300 | 23 | 56 | 598307 | 224791 |
| CO3 3US | 51.88477900 | 0.87350900 | 2 | 4 | 597857 | 224593 |
| CO3 3UZ | 51.88762800 | 0.87822600 | 13 | 29 | 598169 | 224923 |
| CO3 3WD | 51.88990900 | 0.87212200 | 5 | 12 | 597739 | 225160 |
| CO3 3WG | 51.89257300 | 0.89270000 | N/A | N/A | 599143 | 225512 |
| CO3 3WL | 51.89034000 | 0.87215000 | 4 | 9 | 597739 | 225208 |
| CO3 3XL | 51.89318900 | 0.89388800 | N/A | N/A | 599222 | 225584 |
| CO3 3YB | 51.88951900 | 0.91609400 | N/A | N/A | 600766 | 225237 |
| CO3 4AA | 51.88809400 | 0.86318400 | 1 | 2 | 597132 | 224934 |
| CO3 4AB | 51.88620100 | 0.86190100 | 5 | 16 | 597052 | 224720 |
| CO3 4AD | 51.88549000 | 0.86059100 | 2 | 4 | 596965 | 224637 |
| CO3 4AE | 51.88405400 | 0.86067500 | 7 | 16 | 596977 | 224478 |
| CO3 4AF | 51.88295700 | 0.85971700 | 10 | 22 | 596916 | 224353 |
| CO3 4AG | 51.89375500 | 0.86120400 | 1 | 1 | 596971 | 225558 |
| CO3 4AH | 51.88274900 | 0.85926900 | 5 | 6 | 596886 | 224329 |
| CO3 4AJ | 51.88227000 | 0.85822200 | 9 | 29 | 596816 | 224273 |
| CO3 4AL | 51.88325500 | 0.86139400 | 17 | 33 | 597030 | 224391 |
| CO3 4AN | 51.89091800 | 0.86356700 | 11 | 61 | 597146 | 225249 |
| CO3 4AR | 51.89434900 | 0.86525400 | 7 | 17 | 597247 | 225635 |
| CO3 4AS | 51.89339000 | 0.86067200 | 3 | 10 | 596936 | 225516 |