CO6 3 postcode sector in the CO6 district

CO6 3 is a sector of the CO6 district: every postcode that starts CO6 3. It has 215 postcodes in use, 4 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the CO6 3 sector, by flood risk

Map of every postcode in the CO6 3 sector, by flood risk Of the 215 postcodes in the CO6 3 sector that ONS places, 3 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst and 207 are not on the Environment Agency's at-risk list. Places named: Colchester, West Bergholt, Great Horkesley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A134A12A133 CO6 3AA: not on the flood risk listCO6 3AB: not on the flood risk listCO6 3AD: not on the flood risk listCO6 3AE: not on the flood risk listCO6 3AF: not on the flood risk listCO6 3AG: not on the flood risk listCO6 3AH: not on the flood risk listCO6 3AJ: not on the flood risk listCO6 3AL: not on the flood risk listCO6 3AN: not on the flood risk listCO6 3AP: not on the flood risk listCO6 3AQ: not on the flood risk listCO6 3AR: not on the flood risk listCO6 3AT: not on the flood risk listCO6 3AU: not on the flood risk listCO6 3AW: not on the flood risk listCO6 3AX: not on the flood risk listCO6 3AY: not on the flood risk listCO6 3AZ: not on the flood risk listCO6 3BD: not on the flood risk listCO6 3BE: not on the flood risk listCO6 3BG: not on the flood risk listCO6 3BH: not on the flood risk listCO6 3BJ: not on the flood risk listCO6 3BL: not on the flood risk listCO6 3BN: not on the flood risk listCO6 3BP: not on the flood risk listCO6 3BQ: not on the flood risk listCO6 3BT: not on the flood risk listCO6 3BW: not on the flood risk listCO6 3BX: not on the flood risk listCO6 3BY: not on the flood risk listCO6 3BZ: not on the flood risk listCO6 3DB: not on the flood risk listCO6 3DD: not on the flood risk listCO6 3DE: not on the flood risk listCO6 3DG: not on the flood risk listCO6 3DH: not on the flood risk listCO6 3DJ: not on the flood risk listCO6 3DL: not on the flood risk listCO6 3DN: not on the flood risk listCO6 3DP: not on the flood risk listCO6 3DQ: not on the flood risk listCO6 3DR: not on the flood risk listCO6 3DS: not on the flood risk listCO6 3DT: not on the flood risk listCO6 3DU: not on the flood risk listCO6 3DW: not on the flood risk listCO6 3DX: not on the flood risk listCO6 3DZ: not on the flood risk listCO6 3EA: not on the flood risk listCO6 3EB: not on the flood risk listCO6 3ED: not on the flood risk listCO6 3EF: not on the flood risk listCO6 3EG: not on the flood risk listCO6 3EH: not on the flood risk listCO6 3EL: not on the flood risk listCO6 3EN: not on the flood risk listCO6 3EP: not on the flood risk listCO6 3EQ: not on the flood risk listCO6 3ER: not on the flood risk listCO6 3ES: not on the flood risk listCO6 3ET: not on the flood risk listCO6 3EW: not on the flood risk listCO6 3EX: not on the flood risk listCO6 3EY: not on the flood risk listCO6 3EZ: not on the flood risk listCO6 3FA: not on the flood risk listCO6 3FD: not on the flood risk listCO6 3FE: not on the flood risk listCO6 3FF: not on the flood risk listCO6 3FG: not on the flood risk listCO6 3FH: not on the flood risk listCO6 3FJ: not on the flood risk listCO6 3HB: not on the flood risk listCO6 3HD: not on the flood risk listCO6 3HE: not on the flood risk listCO6 3HF: not on the flood risk listCO6 3HJ: not on the flood risk listCO6 3HL: not on the flood risk listCO6 3HN: not on the flood risk listCO6 3HQ: not on the flood risk listCO6 3HR: not on the flood risk listCO6 3HS: not on the flood risk listCO6 3HU: not on the flood risk listCO6 3HW: not on the flood risk listCO6 3HX: not on the flood risk listCO6 3HY: not on the flood risk listCO6 3HZ: not on the flood risk listCO6 3JA: not on the flood risk listCO6 3JB: not on the flood risk listCO6 3JD: not on the flood risk listCO6 3JE: not on the flood risk listCO6 3JF: not on the flood risk listCO6 3JG: not on the flood risk listCO6 3JJ: not on the flood risk listCO6 3JL: not on the flood risk listCO6 3JN: not on the flood risk listCO6 3JP: not on the flood risk listCO6 3JQ: not on the flood risk listCO6 3JS: not on the flood risk listCO6 3JW: not on the flood risk listCO6 3JX: not on the flood risk listCO6 3JY: not on the flood risk listCO6 3JZ: not on the flood risk listCO6 3LA: not on the flood risk listCO6 3LB: not on the flood risk listCO6 3LE: not on the flood risk listCO6 3LG: not on the flood risk listCO6 3LH: not on the flood risk listCO6 3LJ: not on the flood risk listCO6 3LN: not on the flood risk listCO6 3LP: not on the flood risk listCO6 3LR: not on the flood risk listCO6 3LS: not on the flood risk listCO6 3LT: not on the flood risk listCO6 3LU: not on the flood risk listCO6 3LX: not on the flood risk listCO6 3LY: not on the flood risk listCO6 3LZ: not on the flood risk listCO6 3NA: not on the flood risk listCO6 3NB: not on the flood risk listCO6 3ND: not on the flood risk listCO6 3NE: not on the flood risk listCO6 3NG: not on the flood risk listCO6 3NH: not on the flood risk listCO6 3NJ: not on the flood risk listCO6 3NL: not on the flood risk listCO6 3NP: not on the flood risk listCO6 3NQ: not on the flood risk listCO6 3NR: not on the flood risk listCO6 3NS: not on the flood risk listCO6 3NU: not on the flood risk listCO6 3NW: not on the flood risk listCO6 3NX: not on the flood risk listCO6 3NY: not on the flood risk listCO6 3NZ: not on the flood risk listCO6 3PF: not on the flood risk listCO6 3PG: not on the flood risk listCO6 3PP: not on the flood risk listCO6 3PR: not on the flood risk listCO6 3PS: not on the flood risk listCO6 3PT: not on the flood risk listCO6 3PU: not on the flood risk listCO6 3PX: not on the flood risk listCO6 3PZ: not on the flood risk listCO6 3QB: not on the flood risk listCO6 3QE: not on the flood risk listCO6 3QF: not on the flood risk listCO6 3QG: not on the flood risk listCO6 3QH: not on the flood risk listCO6 3QJ: not on the flood risk listCO6 3QL: not on the flood risk listCO6 3QN: not on the flood risk listCO6 3QP: not on the flood risk listCO6 3QQ: not on the flood risk listCO6 3QR: not on the flood risk listCO6 3QS: not on the flood risk listCO6 3QT: not on the flood risk listCO6 3QU: not on the flood risk listCO6 3QY: not on the flood risk listCO6 3QZ: not on the flood risk listCO6 3RB: not on the flood risk listCO6 3RD: not on the flood risk listCO6 3RE: not on the flood risk listCO6 3RG: not on the flood risk listCO6 3RH: not on the flood risk listCO6 3RJ: not on the flood risk listCO6 3RL: not on the flood risk listCO6 3RN: not on the flood risk listCO6 3RP: not on the flood risk listCO6 3RR: not on the flood risk listCO6 3RS: not on the flood risk listCO6 3RT: not on the flood risk listCO6 3RW: not on the flood risk listCO6 3RX: not on the flood risk listCO6 3RY: not on the flood risk listCO6 3RZ: not on the flood risk listCO6 3SA: not on the flood risk listCO6 3SD: not on the flood risk listCO6 3SE: not on the flood risk listCO6 3SF: not on the flood risk listCO6 3SG: not on the flood risk listCO6 3SH: not on the flood risk listCO6 3SL: not on the flood risk listCO6 3TA: not on the flood risk listCO6 3TB: not on the flood risk listCO6 3AS: low flood risk at worstCO6 3NN: low flood risk at worstCO6 3LL: medium flood risk at worstCO6 3PH: medium flood risk at worstCO6 3PL: medium flood risk at worstCO6 3BA: high flood riskCO6 3LW: high flood riskCO6 3PN: high flood risk ColchesterWest BergholtGreat Horkesley Map of every postcode in the CO6 3 sector, by flood risk Of the 215 postcodes in the CO6 3 sector that ONS places, 3 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst and 207 are not on the Environment Agency's at-risk list. Places named: Colchester, West Bergholt, Great Horkesley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. ColchesterWest BergholtGreat Horkesley
  • A home or business at high risk: 3
  • At medium risk at worst: 3
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 207

Of the 215 postcodes in the CO6 3 sector that ONS places, 3 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst and 207 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

CO6 3LW6 at high riskCO6 3PN2 at high riskCO6 3BA1 at high risk

What do homes sell for in CO6 3?

Homes in CO6 3 sold for a typical £417,500 in the 12 months to August 2026, across 64 sales, up 4.4% on the 12 months before, HM Land Registry's figures show.

£417,500 typical price, the 12 months to August 2026
£400,000 12 months to August 2025
▲ up 4.4% on the 12 months before
  • Detached £515,000 35 sales
  • Semi-detached £342,500 17 sales
  • Terraced £292,500 10 sales
  • Flat or maisonette 2 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start CO6 3. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in CO6 3

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

CO6 3AACO6 3ABCO6 3ADCO6 3AECO6 3AFCO6 3AGCO6 3AHCO6 3AJCO6 3ALCO6 3ANCO6 3APCO6 3AQCO6 3ARCO6 3ASCO6 3ATCO6 3AUCO6 3AWCO6 3AXCO6 3AYCO6 3AZCO6 3BACO6 3BDCO6 3BECO6 3BGCO6 3BHCO6 3BJCO6 3BLCO6 3BNCO6 3BPCO6 3BQCO6 3BTCO6 3BWCO6 3BXCO6 3BYCO6 3BZCO6 3DACO6 3DBCO6 3DDCO6 3DECO6 3DGCO6 3DHCO6 3DJCO6 3DLCO6 3DNCO6 3DPCO6 3DQCO6 3DRCO6 3DSCO6 3DTCO6 3DUCO6 3DWCO6 3DXCO6 3DZCO6 3EACO6 3EBCO6 3EDCO6 3EFCO6 3EGCO6 3EHCO6 3ELCO6 3ENCO6 3EPCO6 3EQCO6 3ERCO6 3ESCO6 3ETCO6 3EWCO6 3EXCO6 3EYCO6 3EZCO6 3FACO6 3FDCO6 3FECO6 3FFCO6 3FGCO6 3FHCO6 3FJCO6 3HACO6 3HBCO6 3HDCO6 3HECO6 3HFCO6 3HGCO6 3HHCO6 3HJCO6 3HLCO6 3HNCO6 3HQCO6 3HRCO6 3HSCO6 3HTCO6 3HUCO6 3HWCO6 3HXCO6 3HYCO6 3HZCO6 3JACO6 3JBCO6 3JDCO6 3JECO6 3JFCO6 3JGCO6 3JJCO6 3JLCO6 3JNCO6 3JPCO6 3JQCO6 3JSCO6 3JTCO6 3JUCO6 3JWCO6 3JXCO6 3JYCO6 3JZCO6 3LACO6 3LBCO6 3LDCO6 3LECO6 3LFCO6 3LGCO6 3LHCO6 3LJCO6 3LLCO6 3LNCO6 3LPCO6 3LQCO6 3LRCO6 3LSCO6 3LTCO6 3LUCO6 3LWCO6 3LXCO6 3LYCO6 3LZCO6 3NACO6 3NBCO6 3NDCO6 3NECO6 3NGCO6 3NHCO6 3NJCO6 3NLCO6 3NNCO6 3NPCO6 3NQCO6 3NRCO6 3NSCO6 3NTCO6 3NUCO6 3NWCO6 3NXCO6 3NYCO6 3NZCO6 3PFCO6 3PGCO6 3PHCO6 3PLCO6 3PNCO6 3PPCO6 3PRCO6 3PSCO6 3PTCO6 3PUCO6 3PXCO6 3PZCO6 3QACO6 3QBCO6 3QDCO6 3QECO6 3QFCO6 3QGCO6 3QHCO6 3QJCO6 3QLCO6 3QNCO6 3QPCO6 3QQCO6 3QRCO6 3QSCO6 3QTCO6 3QUCO6 3QYCO6 3QZCO6 3RBCO6 3RDCO6 3RECO6 3RFCO6 3RGCO6 3RHCO6 3RJCO6 3RLCO6 3RNCO6 3RPCO6 3RQCO6 3RRCO6 3RSCO6 3RTCO6 3RWCO6 3RXCO6 3RYCO6 3RZCO6 3SACO6 3SDCO6 3SECO6 3SFCO6 3SGCO6 3SHCO6 3SJCO6 3SLCO6 3SNCO6 3SRCO6 3TACO6 3TBCO6 3TDCO6 3TJ

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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