CM9 8 postcode sector in the CM9 district

CM9 8 is a sector of the CM9 district: every postcode that starts CM9 8. It has 275 postcodes in use.

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

Every postcode in the CM9 8 sector, by flood risk

Map of every postcode in the CM9 8 sector, by flood risk Of the 275 postcodes in the CM9 8 sector that ONS places, 23 have a home or business at high risk, 6 are at medium risk at worst, 9 are at low risk at worst and 237 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Tollesbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. CM9 8AA: not on the flood risk listCM9 8AB: not on the flood risk listCM9 8AE: not on the flood risk listCM9 8AF: not on the flood risk listCM9 8AG: not on the flood risk listCM9 8AJ: not on the flood risk listCM9 8AN: not on the flood risk listCM9 8AP: not on the flood risk listCM9 8AR: not on the flood risk listCM9 8AS: not on the flood risk listCM9 8AW: not on the flood risk listCM9 8AY: not on the flood risk listCM9 8AZ: not on the flood risk listCM9 8BA: not on the flood risk listCM9 8BB: not on the flood risk listCM9 8BD: not on the flood risk listCM9 8BE: not on the flood risk listCM9 8BG: not on the flood risk listCM9 8BJ: not on the flood risk listCM9 8BR: not on the flood risk listCM9 8BT: not on the flood risk listCM9 8BU: not on the flood risk listCM9 8BW: not on the flood risk listCM9 8BX: not on the flood risk listCM9 8BY: not on the flood risk listCM9 8BZ: not on the flood risk listCM9 8DA: not on the flood risk listCM9 8DD: not on the flood risk listCM9 8DE: not on the flood risk listCM9 8DF: not on the flood risk listCM9 8DG: not on the flood risk listCM9 8DH: not on the flood risk listCM9 8DJ: not on the flood risk listCM9 8DL: not on the flood risk listCM9 8DN: not on the flood risk listCM9 8DQ: not on the flood risk listCM9 8DS: not on the flood risk listCM9 8DT: not on the flood risk listCM9 8DU: not on the flood risk listCM9 8DX: not on the flood risk listCM9 8DY: not on the flood risk listCM9 8EA: not on the flood risk listCM9 8EB: not on the flood risk listCM9 8ED: not on the flood risk listCM9 8EE: not on the flood risk listCM9 8EH: not on the flood risk listCM9 8EJ: not on the flood risk listCM9 8EL: not on the flood risk listCM9 8EN: not on the flood risk listCM9 8EP: not on the flood risk listCM9 8ER: not on the flood risk listCM9 8ES: not on the flood risk listCM9 8ET: not on the flood risk listCM9 8EU: not on the flood risk listCM9 8EW: not on the flood risk listCM9 8EX: not on the flood risk listCM9 8EY: not on the flood risk listCM9 8EZ: not on the flood risk listCM9 8FA: not on the flood risk listCM9 8FB: not on the flood risk listCM9 8FD: not on the flood risk listCM9 8FG: not on the flood risk listCM9 8FH: not on the flood risk listCM9 8FJ: not on the flood risk listCM9 8FL: not on the flood risk listCM9 8FN: not on the flood risk listCM9 8FS: not on the flood risk listCM9 8FW: not on the flood risk listCM9 8GB: not on the flood risk listCM9 8HA: not on the flood risk listCM9 8HB: not on the flood risk listCM9 8HD: not on the flood risk listCM9 8HE: not on the flood risk listCM9 8HF: not on the flood risk listCM9 8HG: not on the flood risk listCM9 8HP: not on the flood risk listCM9 8HQ: not on the flood risk listCM9 8HR: not on the flood risk listCM9 8HT: not on the flood risk listCM9 8HX: not on the flood risk listCM9 8JB: not on the flood risk listCM9 8JE: not on the flood risk listCM9 8JG: not on the flood risk listCM9 8JH: not on the flood risk listCM9 8JL: not on the flood risk listCM9 8JN: not on the flood risk listCM9 8JP: not on the flood risk listCM9 8JR: not on the flood risk listCM9 8JS: not on the flood risk listCM9 8JT: not on the flood risk listCM9 8JU: not on the flood risk listCM9 8JW: not on the flood risk listCM9 8JX: not on the flood risk listCM9 8JY: not on the flood risk listCM9 8JZ: not on the flood risk listCM9 8LA: not on the flood risk listCM9 8LB: not on the flood risk listCM9 8LD: not on the flood risk listCM9 8LE: not on the flood risk listCM9 8LF: not on the flood risk listCM9 8LG: not on the flood risk listCM9 8LH: not on the flood risk listCM9 8LJ: not on the flood risk listCM9 8LL: not on the flood risk listCM9 8LN: not on the flood risk listCM9 8LP: not on the flood risk listCM9 8LQ: not on the flood risk listCM9 8LR: not on the flood risk listCM9 8LT: not on the flood risk listCM9 8LW: not on the flood risk listCM9 8LZ: not on the flood risk listCM9 8NB: not on the flood risk listCM9 8ND: not on the flood risk listCM9 8NE: not on the flood risk listCM9 8NF: not on the flood risk listCM9 8NG: not on the flood risk listCM9 8NH: not on the flood risk listCM9 8NL: not on the flood risk listCM9 8NN: not on the flood risk listCM9 8NP: not on the flood risk listCM9 8NQ: not on the flood risk listCM9 8NR: not on the flood risk listCM9 8NT: not on the flood risk listCM9 8NU: not on the flood risk listCM9 8NX: not on the flood risk listCM9 8NY: not on the flood risk listCM9 8NZ: not on the flood risk listCM9 8PA: not on the flood risk listCM9 8PB: not on the flood risk listCM9 8PD: not on the flood risk listCM9 8PE: not on the flood risk listCM9 8PF: not on the flood risk listCM9 8PH: not on the flood risk listCM9 8PJ: not on the flood risk listCM9 8PL: not on the flood risk listCM9 8PN: not on the flood risk listCM9 8PQ: not on the flood risk listCM9 8PT: not on the flood risk listCM9 8PU: not on the flood risk listCM9 8PW: not on the flood risk listCM9 8PX: not on the flood risk listCM9 8PY: not on the flood risk listCM9 8PZ: not on the flood risk listCM9 8QA: not on the flood risk listCM9 8QD: not on the flood risk listCM9 8QE: not on the flood risk listCM9 8QF: not on the flood risk listCM9 8QH: not on the flood risk listCM9 8QJ: not on the flood risk listCM9 8QL: not on the flood risk listCM9 8QN: not on the flood risk listCM9 8QP: not on the flood risk listCM9 8QQ: not on the flood risk listCM9 8QS: not on the flood risk listCM9 8QU: not on the flood risk listCM9 8QX: not on the flood risk listCM9 8RA: not on the flood risk listCM9 8RB: not on the flood risk listCM9 8RD: not on the flood risk listCM9 8RE: not on the flood risk listCM9 8RF: not on the flood risk listCM9 8RH: not on the flood risk listCM9 8RJ: not on the flood risk listCM9 8RL: not on the flood risk listCM9 8RN: not on the flood risk listCM9 8RP: not on the flood risk listCM9 8RQ: not on the flood risk listCM9 8RT: not on the flood risk listCM9 8RU: not on the flood risk listCM9 8SD: not on the flood risk listCM9 8SF: not on the flood risk listCM9 8SG: not on the flood risk listCM9 8SH: not on the flood risk listCM9 8SJ: not on the flood risk listCM9 8SL: not on the flood risk listCM9 8SN: not on the flood risk listCM9 8SP: not on the flood risk listCM9 8SR: not on the flood risk listCM9 8SU: not on the flood risk listCM9 8SX: not on the flood risk listCM9 8SZ: not on the flood risk listCM9 8TD: not on the flood risk listCM9 8TE: not on the flood risk listCM9 8TF: not on the flood risk listCM9 8TH: not on the flood risk listCM9 8TJ: not on the flood risk listCM9 8TL: not on the flood risk listCM9 8TN: not on the flood risk listCM9 8TQ: not on the flood risk listCM9 8TR: not on the flood risk listCM9 8TS: not on the flood risk listCM9 8TT: not on the flood risk listCM9 8TU: not on the flood risk listCM9 8TW: not on the flood risk listCM9 8TX: not on the flood risk listCM9 8UA: not on the flood risk listCM9 8UB: not on the flood risk listCM9 8UD: not on the flood risk listCM9 8UE: not on the flood risk listCM9 8UF: not on the flood risk listCM9 8UJ: not on the flood risk listCM9 8US: not on the flood risk listCM9 8UT: not on the flood risk listCM9 8UU: not on the flood risk listCM9 8WS: not on the flood risk listCM9 8XA: not on the flood risk listCM9 8XB: not on the flood risk listCM9 8XG: not on the flood risk listCM9 8XH: not on the flood risk listCM9 8XJ: not on the flood risk listCM9 8XL: not on the flood risk listCM9 8XP: not on the flood risk listCM9 8XQ: not on the flood risk listCM9 8YB: not on the flood risk listCM9 8YF: not on the flood risk listCM9 8AH: low flood risk at worstCM9 8AQ: low flood risk at worstCM9 8AT: low flood risk at worstCM9 8AU: low flood risk at worstCM9 8AX: low flood risk at worstCM9 8FE: low flood risk at worstCM9 8PR: low flood risk at worstCM9 8SB: low flood risk at worstCM9 8AL: medium flood risk at worstCM9 8LU: medium flood risk at worstCM9 8LY: medium flood risk at worstCM9 8RW: medium flood risk at worstCM9 8RY: medium flood risk at worstCM9 8ST: medium flood risk at worstCM9 8BQ: high flood riskCM9 8SE: high flood riskCM9 8HH: high flood riskCM9 8HJ: high flood riskCM9 8HL: high flood riskCM9 8HN: high flood riskCM9 8HS: high flood riskCM9 8HW: high flood riskCM9 8JA: high flood riskCM9 8JD: high flood riskCM9 8JF: high flood riskCM9 8JQ: high flood riskCM9 8LS: high flood riskCM9 8LX: high flood riskCM9 8NA: high flood riskCM9 8NS: high flood riskCM9 8QB: high flood riskCM9 8SS: high flood riskCM9 8TB: high flood riskCM9 8TP: high flood riskCM9 8TZ: high flood riskCM9 8UH: high flood riskCM9 8WB: high flood risk Tollesbury 5 postcodes at high or medium risk, outlined: this goes to CM9 8HL, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the CM9 8 sector, by flood risk Of the 275 postcodes in the CM9 8 sector that ONS places, 23 have a home or business at high risk, 6 are at medium risk at worst, 9 are at low risk at worst and 237 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Tollesbury. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Tollesbury
  • A home or business at high risk: 23
  • At medium risk at worst: 6
  • At low risk at worst: 9
  • At very low risk only: 0
  • Not on the at-risk list: 237
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 275 postcodes in the CM9 8 sector that ONS places, 23 have a home or business at high risk, 6 are at medium risk at worst, 9 are at low risk at worst and 237 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. A dashed outline shows where 5 or more lie within 270 metres of each other. It is not a boundary, and 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

23 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

CM9 8SE50 at high riskCM9 8HL20 at high riskCM9 8HW18 at high riskCM9 8HH15 at high riskCM9 8LX9 at high riskCM9 8HJ7 at high riskCM9 8HS6 at high riskCM9 8NS3 at high riskCM9 8SS2 at high riskCM9 8JQ2 at high riskCM9 8LS2 at high riskCM9 8TP2 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. CM9 8HL, is the one with most homes and businesses at high risk.

What do homes sell for in CM9 8?

Homes in CM9 8 sold for a typical £422,000 in the 12 months to August 2026, across 82 sales, up 1.7% on the 12 months before, HM Land Registry's figures show.

£422,000 typical price, the 12 months to August 2026
£415,000 12 months to August 2025
▲ up 1.7% on the 12 months before
  • Detached £520,000 45 sales
  • Semi-detached £347,500 24 sales
  • Terraced £287,500 9 sales
  • Flat or maisonette 4 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 CM9 8. 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 CM9 8

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.

CM9 8AACM9 8ABCM9 8AECM9 8AFCM9 8AGCM9 8AHCM9 8AJCM9 8ALCM9 8ANCM9 8APCM9 8AQCM9 8ARCM9 8ASCM9 8ATCM9 8AUCM9 8AWCM9 8AXCM9 8AYCM9 8AZCM9 8BACM9 8BBCM9 8BDCM9 8BECM9 8BGCM9 8BJCM9 8BQCM9 8BRCM9 8BTCM9 8BUCM9 8BWCM9 8BXCM9 8BYCM9 8BZCM9 8DACM9 8DDCM9 8DECM9 8DFCM9 8DGCM9 8DHCM9 8DJCM9 8DLCM9 8DNCM9 8DQCM9 8DSCM9 8DTCM9 8DUCM9 8DWCM9 8DXCM9 8DYCM9 8EACM9 8EBCM9 8EDCM9 8EECM9 8EHCM9 8EJCM9 8ELCM9 8ENCM9 8EPCM9 8ERCM9 8ESCM9 8ETCM9 8EUCM9 8EWCM9 8EXCM9 8EYCM9 8EZCM9 8FACM9 8FBCM9 8FDCM9 8FECM9 8FGCM9 8FHCM9 8FJCM9 8FLCM9 8FNCM9 8FPCM9 8FSCM9 8FWCM9 8GBCM9 8HACM9 8HBCM9 8HDCM9 8HECM9 8HFCM9 8HGCM9 8HHCM9 8HJCM9 8HLCM9 8HNCM9 8HPCM9 8HQCM9 8HRCM9 8HSCM9 8HTCM9 8HWCM9 8HXCM9 8JACM9 8JBCM9 8JDCM9 8JECM9 8JFCM9 8JGCM9 8JHCM9 8JJCM9 8JLCM9 8JNCM9 8JPCM9 8JQCM9 8JRCM9 8JSCM9 8JTCM9 8JUCM9 8JWCM9 8JXCM9 8JYCM9 8JZCM9 8LACM9 8LBCM9 8LDCM9 8LECM9 8LFCM9 8LGCM9 8LHCM9 8LJCM9 8LLCM9 8LNCM9 8LPCM9 8LQCM9 8LRCM9 8LSCM9 8LTCM9 8LUCM9 8LWCM9 8LXCM9 8LYCM9 8LZCM9 8NACM9 8NBCM9 8NDCM9 8NECM9 8NFCM9 8NGCM9 8NHCM9 8NLCM9 8NNCM9 8NPCM9 8NQCM9 8NRCM9 8NSCM9 8NTCM9 8NUCM9 8NXCM9 8NYCM9 8NZCM9 8PACM9 8PBCM9 8PDCM9 8PECM9 8PFCM9 8PGCM9 8PHCM9 8PJCM9 8PLCM9 8PNCM9 8PQCM9 8PRCM9 8PTCM9 8PUCM9 8PWCM9 8PXCM9 8PYCM9 8PZCM9 8QACM9 8QBCM9 8QDCM9 8QECM9 8QFCM9 8QGCM9 8QHCM9 8QJCM9 8QLCM9 8QNCM9 8QPCM9 8QQCM9 8QRCM9 8QSCM9 8QUCM9 8QXCM9 8QYCM9 8QZCM9 8RACM9 8RBCM9 8RDCM9 8RECM9 8RFCM9 8RGCM9 8RHCM9 8RJCM9 8RLCM9 8RNCM9 8RPCM9 8RQCM9 8RRCM9 8RSCM9 8RTCM9 8RUCM9 8RWCM9 8RYCM9 8SACM9 8SBCM9 8SDCM9 8SECM9 8SFCM9 8SGCM9 8SHCM9 8SJCM9 8SLCM9 8SNCM9 8SPCM9 8SQCM9 8SRCM9 8SSCM9 8STCM9 8SUCM9 8SWCM9 8SXCM9 8SYCM9 8SZCM9 8TACM9 8TBCM9 8TDCM9 8TECM9 8TFCM9 8TGCM9 8THCM9 8TJCM9 8TLCM9 8TNCM9 8TPCM9 8TQCM9 8TRCM9 8TSCM9 8TTCM9 8TUCM9 8TWCM9 8TXCM9 8TYCM9 8TZCM9 8UACM9 8UBCM9 8UDCM9 8UECM9 8UFCM9 8UGCM9 8UHCM9 8UJCM9 8ULCM9 8UNCM9 8USCM9 8UTCM9 8UUCM9 8WBCM9 8WDCM9 8WSCM9 8XACM9 8XBCM9 8XGCM9 8XHCM9 8XJCM9 8XLCM9 8XPCM9 8XQCM9 8YBCM9 8YFCM9 8YL

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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