CO9 4 postcode sector in the CO9 district

CO9 4 is a sector of the CO9 district: every postcode that starts CO9 4. It has 176 postcodes in use.

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

Every postcode in the CO9 4 sector, and which are new since 2020

Map of every postcode in the CO9 4 sector, by new since 2020 Of the 176 postcodes in the CO9 4 sector that ONS places, 7 are new since 2020 and 169 were in use before 2020. Places named: Sible Hedingham, Great Yeldham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1092 CO9 4AA: before 2020CO9 4AB: before 2020CO9 4AD: before 2020CO9 4AF: before 2020CO9 4AG: before 2020CO9 4AH: before 2020CO9 4AJ: before 2020CO9 4AP: before 2020CO9 4BB: before 2020CO9 4BD: before 2020CO9 4BE: before 2020CO9 4BG: before 2020CO9 4BH: before 2020CO9 4BJ: before 2020CO9 4BL: before 2020CO9 4BN: before 2020CO9 4BP: before 2020CO9 4BS: before 2020CO9 4BT: before 2020CO9 4BU: before 2020CO9 4BX: before 2020CO9 4BY: before 2020CO9 4BZ: before 2020CO9 4DA: before 2020CO9 4DB: before 2020CO9 4DD: before 2020CO9 4DG: before 2020CO9 4DJ: before 2020CO9 4DQ: before 2020CO9 4DR: before 2020CO9 4DS: before 2020CO9 4DT: before 2020CO9 4DX: before 2020CO9 4DZ: before 2020CO9 4EA: before 2020CO9 4EB: before 2020CO9 4ED: before 2020CO9 4EE: before 2020CO9 4EF: before 2020CO9 4EG: before 2020CO9 4EH: before 2020CO9 4EJ: before 2020CO9 4EL: before 2020CO9 4EN: before 2020CO9 4ER: before 2020CO9 4EU: before 2020CO9 4EX: before 2020CO9 4EY: before 2020CO9 4HA: before 2020CO9 4HB: before 2020CO9 4HD: before 2020CO9 4HE: before 2020CO9 4HG: before 2020CO9 4HH: before 2020CO9 4HJ: before 2020CO9 4HN: before 2020CO9 4HP: before 2020CO9 4HS: before 2020CO9 4HT: before 2020CO9 4HU: before 2020CO9 4HX: before 2020CO9 4JA: before 2020CO9 4JD: before 2020CO9 4JE: before 2020CO9 4JF: before 2020CO9 4JG: before 2020CO9 4JH: before 2020CO9 4JJ: before 2020CO9 4JL: before 2020CO9 4JN: before 2020CO9 4JP: before 2020CO9 4JQ: before 2020CO9 4JR: before 2020CO9 4JS: before 2020CO9 4JT: before 2020CO9 4JU: before 2020CO9 4JX: before 2020CO9 4JY: before 2020CO9 4JZ: before 2020CO9 4LA: before 2020CO9 4LB: before 2020CO9 4LE: before 2020CO9 4LF: before 2020CO9 4LG: before 2020CO9 4LH: before 2020CO9 4LJ: before 2020CO9 4LN: before 2020CO9 4LQ: before 2020CO9 4LR: before 2020CO9 4LS: before 2020CO9 4LX: before 2020CO9 4LZ: before 2020CO9 4NB: before 2020CO9 4ND: before 2020CO9 4NE: before 2020CO9 4NG: before 2020CO9 4NH: before 2020CO9 4NJ: before 2020CO9 4NN: before 2020CO9 4NP: before 2020CO9 4NQ: before 2020CO9 4NR: before 2020CO9 4NT: before 2020CO9 4NX: before 2020CO9 4NZ: before 2020CO9 4PA: before 2020CO9 4PD: before 2020CO9 4PE: before 2020CO9 4PG: before 2020CO9 4PH: before 2020CO9 4PJ: before 2020CO9 4PP: before 2020CO9 4PR: before 2020CO9 4PT: before 2020CO9 4PU: before 2020CO9 4QA: before 2020CO9 4QD: before 2020CO9 4QG: before 2020CO9 4QJ: before 2020CO9 4QL: before 2020CO9 4QN: before 2020CO9 4QP: before 2020CO9 4QQ: before 2020CO9 4QS: before 2020CO9 4QT: before 2020CO9 4QX: before 2020CO9 4RA: before 2020CO9 4RB: before 2020CO9 4RG: before 2020CO9 4RH: before 2020CO9 4RJ: before 2020CO9 4RL: before 2020CO9 4RP: before 2020CO9 4RQ: before 2020CO9 4RR: before 2020CO9 4RS: before 2020CO9 4RT: before 2020CO9 4RU: before 2020CO9 4RX: before 2020CO9 4RZ: before 2020CO9 4SA: before 2020CO9 4SG: before 2020CO9 4SH: before 2020CO9 4SJ: before 2020CO9 4SL: before 2020CO9 4SP: before 2020CO9 4SR: before 2020CO9 4ST: before 2020CO9 4SW: before 2020CO9 4SY: before 2020CO9 4PQ: before 2020CO9 4PX: before 2020CO9 4DW: new since 2020CO9 4ET: new since 2020CO9 4FA: new since 2020CO9 4FB: new since 2020CO9 4FD: new since 2020CO9 4FE: new since 2020CO9 4LL: new since 2020 Sible HedinghamGreat Yeldham Map of every postcode in the CO9 4 sector, by new since 2020 Of the 176 postcodes in the CO9 4 sector that ONS places, 7 are new since 2020 and 169 were in use before 2020. Places named: Sible Hedingham, Great Yeldham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Sible HedinghamGreat Yeldham
  • New since 2020: 7
  • In use before 2020: 169

Of the 176 postcodes in the CO9 4 sector that ONS places, 7 are new since 2020 and 169 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 5 newest postcodes

CO9 4LLFebruary 2024CO9 4FESeptember 2022CO9 4FDJuly 2022CO9 4ETNovember 2021CO9 4FBJuly 2021

What do homes sell for in CO9 4?

Homes in CO9 4 sold for a typical £406,000 in the 12 months to August 2026, across 36 sales, up 7.5% on the 12 months before, HM Land Registry's figures show.

£406,000 typical price, the 12 months to August 2026
£377,500 12 months to August 2025
▲ up 7.5% on the 12 months before
  • Detached £517,500 18 sales
  • Semi-detached £382,500 11 sales
  • Terraced £290,000 5 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 CO9 4. 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 CO9 4

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.

CO9 4AACO9 4ABCO9 4ADCO9 4AECO9 4AFCO9 4AGCO9 4AHCO9 4AJCO9 4APCO9 4BBCO9 4BDCO9 4BECO9 4BGCO9 4BHCO9 4BJCO9 4BLCO9 4BNCO9 4BPCO9 4BSCO9 4BTCO9 4BUCO9 4BWCO9 4BXCO9 4BYCO9 4BZCO9 4DACO9 4DBCO9 4DDCO9 4DGCO9 4DJCO9 4DQCO9 4DRCO9 4DSCO9 4DTCO9 4DWCO9 4DXCO9 4DZCO9 4EACO9 4EBCO9 4EDCO9 4EECO9 4EFCO9 4EGCO9 4EHCO9 4EJCO9 4ELCO9 4ENCO9 4ERCO9 4ETCO9 4EUCO9 4EXCO9 4EYCO9 4EZCO9 4FACO9 4FBCO9 4FDCO9 4FECO9 4HACO9 4HBCO9 4HDCO9 4HECO9 4HGCO9 4HHCO9 4HJCO9 4HNCO9 4HPCO9 4HSCO9 4HTCO9 4HUCO9 4HXCO9 4HYCO9 4HZCO9 4JACO9 4JBCO9 4JDCO9 4JECO9 4JFCO9 4JGCO9 4JHCO9 4JJCO9 4JLCO9 4JNCO9 4JPCO9 4JQCO9 4JRCO9 4JSCO9 4JTCO9 4JUCO9 4JWCO9 4JXCO9 4JYCO9 4JZCO9 4LACO9 4LBCO9 4LDCO9 4LECO9 4LFCO9 4LGCO9 4LHCO9 4LJCO9 4LLCO9 4LNCO9 4LQCO9 4LRCO9 4LSCO9 4LWCO9 4LXCO9 4LZCO9 4NBCO9 4NDCO9 4NECO9 4NGCO9 4NHCO9 4NJCO9 4NNCO9 4NPCO9 4NQCO9 4NRCO9 4NTCO9 4NXCO9 4NZCO9 4PACO9 4PDCO9 4PECO9 4PGCO9 4PHCO9 4PJCO9 4PPCO9 4PQCO9 4PRCO9 4PSCO9 4PTCO9 4PUCO9 4PXCO9 4PYCO9 4PZCO9 4QACO9 4QDCO9 4QECO9 4QGCO9 4QHCO9 4QJCO9 4QLCO9 4QNCO9 4QPCO9 4QQCO9 4QSCO9 4QTCO9 4QXCO9 4RACO9 4RBCO9 4RGCO9 4RHCO9 4RJCO9 4RLCO9 4RPCO9 4RQCO9 4RRCO9 4RSCO9 4RTCO9 4RUCO9 4RXCO9 4RZCO9 4SACO9 4SECO9 4SGCO9 4SHCO9 4SJCO9 4SLCO9 4SNCO9 4SPCO9 4SQCO9 4SRCO9 4STCO9 4SWCO9 4SY

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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