BH20 4 postcode sector in the BH20 district

BH20 4 is a sector of the BH20 district: every postcode that starts BH20 4. It has 211 postcodes in use, 7 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 BH20 4 sector, by flood risk

Map of every postcode in the BH20 4 sector, by flood risk Of the 211 postcodes in the BH20 4 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 197 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Wareham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A351 BH20 4AA: not on the flood risk listBH20 4AB: not on the flood risk listBH20 4AD: not on the flood risk listBH20 4AE: not on the flood risk listBH20 4AF: not on the flood risk listBH20 4AG: not on the flood risk listBH20 4AH: not on the flood risk listBH20 4AN: not on the flood risk listBH20 4AQ: not on the flood risk listBH20 4AW: not on the flood risk listBH20 4AX: not on the flood risk listBH20 4AY: not on the flood risk listBH20 4AZ: not on the flood risk listBH20 4BA: not on the flood risk listBH20 4BB: not on the flood risk listBH20 4BD: not on the flood risk listBH20 4BE: not on the flood risk listBH20 4BG: not on the flood risk listBH20 4BH: not on the flood risk listBH20 4BJ: not on the flood risk listBH20 4BL: not on the flood risk listBH20 4BN: not on the flood risk listBH20 4BP: not on the flood risk listBH20 4BQ: not on the flood risk listBH20 4BS: not on the flood risk listBH20 4BT: not on the flood risk listBH20 4BU: not on the flood risk listBH20 4BX: not on the flood risk listBH20 4BY: not on the flood risk listBH20 4BZ: not on the flood risk listBH20 4DA: not on the flood risk listBH20 4DB: not on the flood risk listBH20 4DD: not on the flood risk listBH20 4DE: not on the flood risk listBH20 4DF: not on the flood risk listBH20 4DG: not on the flood risk listBH20 4DH: not on the flood risk listBH20 4DJ: not on the flood risk listBH20 4DL: not on the flood risk listBH20 4DN: not on the flood risk listBH20 4DP: not on the flood risk listBH20 4DQ: not on the flood risk listBH20 4DR: not on the flood risk listBH20 4DS: not on the flood risk listBH20 4DT: not on the flood risk listBH20 4DU: not on the flood risk listBH20 4DW: not on the flood risk listBH20 4DX: not on the flood risk listBH20 4DY: not on the flood risk listBH20 4ED: not on the flood risk listBH20 4EE: not on the flood risk listBH20 4EF: not on the flood risk listBH20 4EG: not on the flood risk listBH20 4EH: not on the flood risk listBH20 4EL: not on the flood risk listBH20 4EN: not on the flood risk listBH20 4EP: not on the flood risk listBH20 4EQ: not on the flood risk listBH20 4ER: not on the flood risk listBH20 4ES: not on the flood risk listBH20 4ET: not on the flood risk listBH20 4EW: not on the flood risk listBH20 4EX: not on the flood risk listBH20 4EY: not on the flood risk listBH20 4EZ: not on the flood risk listBH20 4FA: not on the flood risk listBH20 4FB: not on the flood risk listBH20 4FD: not on the flood risk listBH20 4FE: not on the flood risk listBH20 4FF: not on the flood risk listBH20 4FG: not on the flood risk listBH20 4FH: not on the flood risk listBH20 4FJ: not on the flood risk listBH20 4FL: not on the flood risk listBH20 4FN: not on the flood risk listBH20 4FP: not on the flood risk listBH20 4FQ: not on the flood risk listBH20 4FR: not on the flood risk listBH20 4HA: not on the flood risk listBH20 4HB: not on the flood risk listBH20 4HD: not on the flood risk listBH20 4HE: not on the flood risk listBH20 4HF: not on the flood risk listBH20 4HG: not on the flood risk listBH20 4HH: not on the flood risk listBH20 4HJ: not on the flood risk listBH20 4HL: not on the flood risk listBH20 4HN: not on the flood risk listBH20 4HP: not on the flood risk listBH20 4HQ: not on the flood risk listBH20 4HR: not on the flood risk listBH20 4HS: not on the flood risk listBH20 4HT: not on the flood risk listBH20 4HU: not on the flood risk listBH20 4HW: not on the flood risk listBH20 4HX: not on the flood risk listBH20 4HY: not on the flood risk listBH20 4HZ: not on the flood risk listBH20 4JA: not on the flood risk listBH20 4JB: not on the flood risk listBH20 4JE: not on the flood risk listBH20 4JJ: not on the flood risk listBH20 4JL: not on the flood risk listBH20 4JN: not on the flood risk listBH20 4JQ: not on the flood risk listBH20 4JR: not on the flood risk listBH20 4JS: not on the flood risk listBH20 4JT: not on the flood risk listBH20 4JU: not on the flood risk listBH20 4JW: not on the flood risk listBH20 4JX: not on the flood risk listBH20 4JY: not on the flood risk listBH20 4JZ: not on the flood risk listBH20 4LF: not on the flood risk listBH20 4LG: not on the flood risk listBH20 4LH: not on the flood risk listBH20 4LJ: not on the flood risk listBH20 4LL: not on the flood risk listBH20 4LN: not on the flood risk listBH20 4LQ: not on the flood risk listBH20 4LR: not on the flood risk listBH20 4LT: not on the flood risk listBH20 4LU: not on the flood risk listBH20 4LZ: not on the flood risk listBH20 4NA: not on the flood risk listBH20 4NB: not on the flood risk listBH20 4NE: not on the flood risk listBH20 4NF: not on the flood risk listBH20 4NG: not on the flood risk listBH20 4NH: not on the flood risk listBH20 4NJ: not on the flood risk listBH20 4NL: not on the flood risk listBH20 4NN: not on the flood risk listBH20 4NP: not on the flood risk listBH20 4NQ: not on the flood risk listBH20 4NR: not on the flood risk listBH20 4NS: not on the flood risk listBH20 4NU: not on the flood risk listBH20 4NW: not on the flood risk listBH20 4NX: not on the flood risk listBH20 4NY: not on the flood risk listBH20 4PF: not on the flood risk listBH20 4PG: not on the flood risk listBH20 4PH: not on the flood risk listBH20 4PJ: not on the flood risk listBH20 4PL: not on the flood risk listBH20 4PN: not on the flood risk listBH20 4PP: not on the flood risk listBH20 4PQ: not on the flood risk listBH20 4PR: not on the flood risk listBH20 4PS: not on the flood risk listBH20 4PT: not on the flood risk listBH20 4PU: not on the flood risk listBH20 4PW: not on the flood risk listBH20 4PX: not on the flood risk listBH20 4PY: not on the flood risk listBH20 4PZ: not on the flood risk listBH20 4QA: not on the flood risk listBH20 4QB: not on the flood risk listBH20 4QD: not on the flood risk listBH20 4QE: not on the flood risk listBH20 4QF: not on the flood risk listBH20 4QH: not on the flood risk listBH20 4QJ: not on the flood risk listBH20 4QL: not on the flood risk listBH20 4QN: not on the flood risk listBH20 4QP: not on the flood risk listBH20 4QQ: not on the flood risk listBH20 4QR: not on the flood risk listBH20 4QS: not on the flood risk listBH20 4QT: not on the flood risk listBH20 4QU: not on the flood risk listBH20 4QX: not on the flood risk listBH20 4QY: not on the flood risk listBH20 4RA: not on the flood risk listBH20 4RB: not on the flood risk listBH20 4RD: not on the flood risk listBH20 4RE: not on the flood risk listBH20 4RF: not on the flood risk listBH20 4RG: not on the flood risk listBH20 4RN: not on the flood risk listBH20 4RU: not on the flood risk listBH20 4RX: not on the flood risk listBH20 4RY: not on the flood risk listBH20 4RZ: not on the flood risk listBH20 4SA: not on the flood risk listBH20 4SB: not on the flood risk listBH20 4SD: not on the flood risk listBH20 4SE: not on the flood risk listBH20 4SF: not on the flood risk listBH20 4SG: not on the flood risk listBH20 4SH: not on the flood risk listBH20 4SN: not on the flood risk listBH20 4SP: not on the flood risk listBH20 4SQ: not on the flood risk listBH20 4SR: not on the flood risk listBH20 4SW: not on the flood risk listBH20 4AT: low flood risk at worstBH20 4BW: low flood risk at worstBH20 4SJ: low flood risk at worstBH20 4AP: medium flood risk at worstBH20 4EU: medium flood risk at worstBH20 4AR: high flood riskBH20 4AS: high flood riskBH20 4EA: high flood riskBH20 4LP: high flood riskBH20 4LW: high flood riskBH20 4ND: high flood riskBH20 4PB: high flood riskBH20 4QW: high flood risk Wareham Map of every postcode in the BH20 4 sector, by flood risk Of the 211 postcodes in the BH20 4 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 197 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Wareham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A351 Wareham
  • A home or business at high risk: 9
  • At medium risk at worst: 2
  • At low risk at worst: 3
  • At very low risk only: 0
  • Not on the at-risk list: 197

Of the 211 postcodes in the BH20 4 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 3 are at low risk at worst and 197 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.

BH20 4AR13 at high riskBH20 4JD4 at high riskBH20 4LP4 at high riskBH20 4LW4 at high riskBH20 4AS3 at high riskBH20 4EA1 at high riskBH20 4ND1 at high riskBH20 4PB1 at high riskBH20 4QW1 at high risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

BH20 4JD

What do homes sell for in BH20 4?

Homes in BH20 4 sold for a typical £350,000 in the 12 months to August 2026, across 74 sales, up 5.3% on the 12 months before, HM Land Registry's figures show.

£350,000 typical price, the 12 months to August 2026
£332,500 12 months to August 2025
▲ up 5.3% on the 12 months before
  • Detached £440,000 21 sales
  • Semi-detached £343,000 15 sales
  • Terraced £305,000 29 sales
  • Flat or maisonette £175,000 9 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 BH20 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 BH20 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.

BH20 4AABH20 4ABBH20 4ADBH20 4AEBH20 4AFBH20 4AGBH20 4AHBH20 4ANBH20 4APBH20 4AQBH20 4ARBH20 4ASBH20 4ATBH20 4AWBH20 4AXBH20 4AYBH20 4AZBH20 4BABH20 4BBBH20 4BDBH20 4BEBH20 4BGBH20 4BHBH20 4BJBH20 4BLBH20 4BNBH20 4BPBH20 4BQBH20 4BSBH20 4BTBH20 4BUBH20 4BWBH20 4BXBH20 4BYBH20 4BZBH20 4DABH20 4DBBH20 4DDBH20 4DEBH20 4DFBH20 4DGBH20 4DHBH20 4DJBH20 4DLBH20 4DNBH20 4DPBH20 4DQBH20 4DRBH20 4DSBH20 4DTBH20 4DUBH20 4DWBH20 4DXBH20 4DYBH20 4EABH20 4EDBH20 4EEBH20 4EFBH20 4EGBH20 4EHBH20 4ELBH20 4ENBH20 4EPBH20 4EQBH20 4ERBH20 4ESBH20 4ETBH20 4EUBH20 4EWBH20 4EXBH20 4EYBH20 4EZBH20 4FABH20 4FBBH20 4FDBH20 4FEBH20 4FFBH20 4FGBH20 4FHBH20 4FJBH20 4FLBH20 4FNBH20 4FPBH20 4FQBH20 4FRBH20 4HABH20 4HBBH20 4HDBH20 4HEBH20 4HFBH20 4HGBH20 4HHBH20 4HJBH20 4HLBH20 4HNBH20 4HPBH20 4HQBH20 4HRBH20 4HSBH20 4HTBH20 4HUBH20 4HWBH20 4HXBH20 4HYBH20 4HZBH20 4JABH20 4JBBH20 4JDBH20 4JEBH20 4JJBH20 4JLBH20 4JNBH20 4JQBH20 4JRBH20 4JSBH20 4JTBH20 4JUBH20 4JWBH20 4JXBH20 4JYBH20 4JZBH20 4LFBH20 4LGBH20 4LHBH20 4LJBH20 4LLBH20 4LNBH20 4LPBH20 4LQBH20 4LRBH20 4LTBH20 4LUBH20 4LWBH20 4LZBH20 4NABH20 4NBBH20 4NDBH20 4NEBH20 4NFBH20 4NGBH20 4NHBH20 4NJBH20 4NLBH20 4NNBH20 4NPBH20 4NQBH20 4NRBH20 4NSBH20 4NUBH20 4NWBH20 4NXBH20 4NYBH20 4PBBH20 4PFBH20 4PGBH20 4PHBH20 4PJBH20 4PLBH20 4PNBH20 4PPBH20 4PQBH20 4PRBH20 4PSBH20 4PTBH20 4PUBH20 4PWBH20 4PXBH20 4PYBH20 4PZBH20 4QABH20 4QBBH20 4QDBH20 4QEBH20 4QFBH20 4QHBH20 4QJBH20 4QLBH20 4QNBH20 4QPBH20 4QQBH20 4QRBH20 4QSBH20 4QTBH20 4QUBH20 4QWBH20 4QXBH20 4QYBH20 4RABH20 4RBBH20 4RDBH20 4REBH20 4RFBH20 4RGBH20 4RNBH20 4RUBH20 4RXBH20 4RYBH20 4RZBH20 4SABH20 4SBBH20 4SDBH20 4SEBH20 4SFBH20 4SGBH20 4SHBH20 4SJBH20 4SNBH20 4SPBH20 4SQBH20 4SRBH20 4SW

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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