M20 4 postcode sector in the M20 district

M20 4 is a sector of the M20 district: every postcode that starts M20 4. It has 183 postcodes in use, 3 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 M20 4 sector, by flood risk

Map of every postcode in the M20 4 sector, by flood risk Of the 183 postcodes in the M20 4 sector that ONS places, 16 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst and 155 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Withington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. M20 4AD: not on the flood risk listM20 4AG: not on the flood risk listM20 4AH: not on the flood risk listM20 4AN: not on the flood risk listM20 4AQ: not on the flood risk listM20 4AR: not on the flood risk listM20 4AS: not on the flood risk listM20 4AT: not on the flood risk listM20 4AU: not on the flood risk listM20 4AW: not on the flood risk listM20 4AX: not on the flood risk listM20 4BA: not on the flood risk listM20 4BJ: not on the flood risk listM20 4BL: not on the flood risk listM20 4BN: not on the flood risk listM20 4BP: not on the flood risk listM20 4BT: not on the flood risk listM20 4BU: not on the flood risk listM20 4BW: not on the flood risk listM20 4BX: not on the flood risk listM20 4BY: not on the flood risk listM20 4DA: not on the flood risk listM20 4DB: not on the flood risk listM20 4DD: not on the flood risk listM20 4GH: not on the flood risk listM20 4GJ: not on the flood risk listM20 4GL: not on the flood risk listM20 4GN: not on the flood risk listM20 4GW: not on the flood risk listM20 4HX: not on the flood risk listM20 4NG: not on the flood risk listM20 4NJ: not on the flood risk listM20 4NL: not on the flood risk listM20 4NR: not on the flood risk listM20 4NT: not on the flood risk listM20 4NZ: not on the flood risk listM20 4PB: not on the flood risk listM20 4PE: not on the flood risk listM20 4PG: not on the flood risk listM20 4PH: not on the flood risk listM20 4PJ: not on the flood risk listM20 4PL: not on the flood risk listM20 4PN: not on the flood risk listM20 4PP: not on the flood risk listM20 4PQ: not on the flood risk listM20 4PS: not on the flood risk listM20 4PT: not on the flood risk listM20 4PU: not on the flood risk listM20 4PW: not on the flood risk listM20 4QB: not on the flood risk listM20 4QE: not on the flood risk listM20 4QJ: not on the flood risk listM20 4QL: not on the flood risk listM20 4QN: not on the flood risk listM20 4QP: not on the flood risk listM20 4QW: not on the flood risk listM20 4RA: not on the flood risk listM20 4RB: not on the flood risk listM20 4RD: not on the flood risk listM20 4RG: not on the flood risk listM20 4RL: not on the flood risk listM20 4RN: not on the flood risk listM20 4RP: not on the flood risk listM20 4RQ: not on the flood risk listM20 4RR: not on the flood risk listM20 4RS: not on the flood risk listM20 4RT: not on the flood risk listM20 4RU: not on the flood risk listM20 4RW: not on the flood risk listM20 4RX: not on the flood risk listM20 4RY: not on the flood risk listM20 4RZ: not on the flood risk listM20 4SA: not on the flood risk listM20 4SB: not on the flood risk listM20 4SD: not on the flood risk listM20 4SE: not on the flood risk listM20 4SF: not on the flood risk listM20 4SG: not on the flood risk listM20 4SH: not on the flood risk listM20 4SR: not on the flood risk listM20 4SS: not on the flood risk listM20 4ST: not on the flood risk listM20 4SU: not on the flood risk listM20 4SX: not on the flood risk listM20 4SY: not on the flood risk listM20 4SZ: not on the flood risk listM20 4TA: not on the flood risk listM20 4TB: not on the flood risk listM20 4TD: not on the flood risk listM20 4TE: not on the flood risk listM20 4TF: not on the flood risk listM20 4TG: not on the flood risk listM20 4TH: not on the flood risk listM20 4TJ: not on the flood risk listM20 4TL: not on the flood risk listM20 4TN: not on the flood risk listM20 4TQ: not on the flood risk listM20 4TS: not on the flood risk listM20 4TT: not on the flood risk listM20 4TU: not on the flood risk listM20 4TX: not on the flood risk listM20 4TY: not on the flood risk listM20 4TZ: not on the flood risk listM20 4UA: not on the flood risk listM20 4UB: not on the flood risk listM20 4UD: not on the flood risk listM20 4UE: not on the flood risk listM20 4UG: not on the flood risk listM20 4UH: not on the flood risk listM20 4UJ: not on the flood risk listM20 4UL: not on the flood risk listM20 4UN: not on the flood risk listM20 4UP: not on the flood risk listM20 4UQ: not on the flood risk listM20 4UR: not on the flood risk listM20 4US: not on the flood risk listM20 4UX: not on the flood risk listM20 4UY: not on the flood risk listM20 4UZ: not on the flood risk listM20 4WB: not on the flood risk listM20 4WE: not on the flood risk listM20 4WJ: not on the flood risk listM20 4WQ: not on the flood risk listM20 4WR: not on the flood risk listM20 4WT: not on the flood risk listM20 4WU: not on the flood risk listM20 4WX: not on the flood risk listM20 4WY: not on the flood risk listM20 4XA: not on the flood risk listM20 4XB: not on the flood risk listM20 4XD: not on the flood risk listM20 4XE: not on the flood risk listM20 4XF: not on the flood risk listM20 4XG: not on the flood risk listM20 4XH: not on the flood risk listM20 4XJ: not on the flood risk listM20 4XL: not on the flood risk listM20 4XN: not on the flood risk listM20 4XP: not on the flood risk listM20 4XQ: not on the flood risk listM20 4XR: not on the flood risk listM20 4XT: not on the flood risk listM20 4XU: not on the flood risk listM20 4XW: not on the flood risk listM20 4XX: not on the flood risk listM20 4YA: not on the flood risk listM20 4YB: not on the flood risk listM20 4YD: not on the flood risk listM20 4YE: not on the flood risk listM20 4YF: not on the flood risk listM20 4ZA: not on the flood risk listM20 4ZB: not on the flood risk listM20 4ZD: not on the flood risk listM20 4ZE: not on the flood risk listM20 4ZF: not on the flood risk listM20 4AF: low flood risk at worstM20 4LZ: low flood risk at worstM20 4NA: low flood risk at worstM20 4NH: low flood risk at worstM20 4PY: low flood risk at worstM20 4WA: low flood risk at worstM20 4WH: low flood risk at worstM20 4WZ: low flood risk at worstM20 4NB: medium flood risk at worstM20 4NN: medium flood risk at worstM20 4NU: medium flood risk at worstM20 4WS: medium flood risk at worstM20 4AE: high flood riskM20 4BB: high flood riskM20 4GA: high flood riskM20 4ND: high flood riskM20 4NE: high flood riskM20 4NF: high flood riskM20 4NQ: high flood riskM20 4NS: high flood riskM20 4NX: high flood riskM20 4NY: high flood riskM20 4PX: high flood riskM20 4PZ: high flood riskM20 4QA: high flood riskM20 4WD: high flood riskM20 4WF: high flood riskM20 4WG: high flood risk Withington 19 postcodes at high or medium risk, outlined: this goes to M20 4NE, the one with most homes and businesses at high risk19 postcodes at high or medium risk Map of every postcode in the M20 4 sector, by flood risk Of the 183 postcodes in the M20 4 sector that ONS places, 16 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst and 155 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Withington. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Withington
  • A home or business at high risk: 16
  • At medium risk at worst: 4
  • At low risk at worst: 8
  • At very low risk only: 0
  • Not on the at-risk list: 155
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 183 postcodes in the M20 4 sector that ONS places, 16 have a home or business at high risk, 4 are at medium risk at worst, 8 are at low risk at worst and 155 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 150 metres of each other. It is not a boundary, and no boundary is drawn. Names in italics are council wards: we hold no town or village names here.

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

16 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.

M20 4NE37 at high riskM20 4AE24 at high riskM20 4BB23 at high riskM20 4NF20 at high riskM20 4ND8 at high riskM20 4WD6 at high riskM20 4NY6 at high riskM20 4NQ5 at high riskM20 4NS5 at high riskM20 4PX4 at high riskM20 4GA3 at high riskM20 4NX2 at high risk

Where the postcodes at high or medium risk lie together

  • 19 postcodes at high or medium risk, outlined on the map. M20 4NE, is the one with most homes and businesses at high risk.

What do homes sell for in M20 4?

Homes in M20 4 sold for a typical £318,000 in the 12 months to August 2026, across 79 sales, down 2.2% on the 12 months before, HM Land Registry's figures show.

£318,000 typical price, the 12 months to August 2026
£325,250 12 months to August 2025
▼ down 2.2% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £378,750 46 sales
  • Terraced £347,500 10 sales
  • Flat or maisonette £208,000 22 sales

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 M20 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 M20 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.

M20 4ADM20 4AEM20 4AFM20 4AGM20 4AHM20 4ANM20 4AQM20 4ARM20 4ASM20 4ATM20 4AUM20 4AWM20 4AXM20 4BAM20 4BBM20 4BJM20 4BLM20 4BNM20 4BPM20 4BTM20 4BUM20 4BWM20 4BXM20 4BYM20 4DAM20 4DBM20 4DDM20 4GAM20 4GHM20 4GJM20 4GLM20 4GNM20 4GWM20 4HXM20 4LZM20 4NAM20 4NBM20 4NDM20 4NEM20 4NFM20 4NGM20 4NHM20 4NJM20 4NLM20 4NNM20 4NQM20 4NRM20 4NSM20 4NTM20 4NUM20 4NXM20 4NYM20 4NZM20 4PBM20 4PEM20 4PGM20 4PHM20 4PJM20 4PLM20 4PNM20 4PPM20 4PQM20 4PSM20 4PTM20 4PUM20 4PWM20 4PXM20 4PYM20 4PZM20 4QAM20 4QBM20 4QEM20 4QJM20 4QLM20 4QNM20 4QPM20 4QWM20 4RAM20 4RBM20 4RDM20 4RGM20 4RLM20 4RNM20 4RPM20 4RQM20 4RRM20 4RSM20 4RTM20 4RUM20 4RWM20 4RXM20 4RYM20 4RZM20 4SAM20 4SBM20 4SDM20 4SEM20 4SFM20 4SGM20 4SHM20 4SRM20 4SSM20 4STM20 4SUM20 4SXM20 4SYM20 4SZM20 4TAM20 4TBM20 4TDM20 4TEM20 4TFM20 4TGM20 4THM20 4TJM20 4TLM20 4TNM20 4TQM20 4TSM20 4TTM20 4TUM20 4TXM20 4TYM20 4TZM20 4UAM20 4UBM20 4UDM20 4UEM20 4UGM20 4UHM20 4UJM20 4ULM20 4UNM20 4UPM20 4UQM20 4URM20 4USM20 4UXM20 4UYM20 4UZM20 4WAM20 4WBM20 4WDM20 4WEM20 4WFM20 4WGM20 4WHM20 4WJM20 4WQM20 4WRM20 4WSM20 4WTM20 4WUM20 4WXM20 4WYM20 4WZM20 4XAM20 4XBM20 4XDM20 4XEM20 4XFM20 4XGM20 4XHM20 4XJM20 4XLM20 4XNM20 4XPM20 4XQM20 4XRM20 4XTM20 4XUM20 4XWM20 4XXM20 4YAM20 4YBM20 4YDM20 4YEM20 4YFM20 4ZAM20 4ZBM20 4ZDM20 4ZEM20 4ZF

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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