PO21 1 postcode sector in the PO21 district

PO21 1 is a sector of the PO21 district: every postcode that starts PO21 1. It has 261 postcodes in use, 17 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 PO21 1 sector, by flood risk

Map of every postcode in the PO21 1 sector, by flood risk Of the 261 postcodes in the PO21 1 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 17 are at low risk at worst, 41 are at very low risk only and 190 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Bognor Regis. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. PO21 1AA: not on the flood risk listPO21 1AB: not on the flood risk listPO21 1AD: not on the flood risk listPO21 1AE: not on the flood risk listPO21 1AF: not on the flood risk listPO21 1AG: not on the flood risk listPO21 1AL: not on the flood risk listPO21 1AN: not on the flood risk listPO21 1AP: not on the flood risk listPO21 1AQ: not on the flood risk listPO21 1AR: not on the flood risk listPO21 1AT: not on the flood risk listPO21 1AU: not on the flood risk listPO21 1AW: not on the flood risk listPO21 1AX: not on the flood risk listPO21 1AY: not on the flood risk listPO21 1AZ: not on the flood risk listPO21 1BA: not on the flood risk listPO21 1BB: not on the flood risk listPO21 1BD: not on the flood risk listPO21 1BE: not on the flood risk listPO21 1BG: not on the flood risk listPO21 1BH: not on the flood risk listPO21 1BN: not on the flood risk listPO21 1BP: not on the flood risk listPO21 1BS: not on the flood risk listPO21 1BT: not on the flood risk listPO21 1BU: not on the flood risk listPO21 1BW: not on the flood risk listPO21 1BX: not on the flood risk listPO21 1BY: not on the flood risk listPO21 1DA: not on the flood risk listPO21 1DB: not on the flood risk listPO21 1DD: not on the flood risk listPO21 1DE: not on the flood risk listPO21 1DF: not on the flood risk listPO21 1DG: not on the flood risk listPO21 1DH: not on the flood risk listPO21 1DJ: not on the flood risk listPO21 1DL: not on the flood risk listPO21 1DN: not on the flood risk listPO21 1DQ: not on the flood risk listPO21 1DR: not on the flood risk listPO21 1DS: not on the flood risk listPO21 1DT: not on the flood risk listPO21 1DU: not on the flood risk listPO21 1DW: not on the flood risk listPO21 1DX: not on the flood risk listPO21 1DZ: not on the flood risk listPO21 1ED: not on the flood risk listPO21 1EE: not on the flood risk listPO21 1EF: not on the flood risk listPO21 1EG: not on the flood risk listPO21 1EH: not on the flood risk listPO21 1EJ: not on the flood risk listPO21 1EP: not on the flood risk listPO21 1EQ: not on the flood risk listPO21 1ER: not on the flood risk listPO21 1ES: not on the flood risk listPO21 1EU: not on the flood risk listPO21 1EW: not on the flood risk listPO21 1EX: not on the flood risk listPO21 1FB: not on the flood risk listPO21 1FD: not on the flood risk listPO21 1FF: not on the flood risk listPO21 1FG: not on the flood risk listPO21 1FH: not on the flood risk listPO21 1FJ: not on the flood risk listPO21 1FL: not on the flood risk listPO21 1FN: not on the flood risk listPO21 1FQ: not on the flood risk listPO21 1FR: not on the flood risk listPO21 1FS: not on the flood risk listPO21 1FW: not on the flood risk listPO21 1FY: not on the flood risk listPO21 1HA: not on the flood risk listPO21 1HB: not on the flood risk listPO21 1HD: not on the flood risk listPO21 1HE: not on the flood risk listPO21 1HF: not on the flood risk listPO21 1HG: not on the flood risk listPO21 1HJ: not on the flood risk listPO21 1HN: not on the flood risk listPO21 1HQ: not on the flood risk listPO21 1HS: not on the flood risk listPO21 1HU: not on the flood risk listPO21 1HY: not on the flood risk listPO21 1HZ: not on the flood risk listPO21 1JB: not on the flood risk listPO21 1JD: not on the flood risk listPO21 1JE: not on the flood risk listPO21 1JF: not on the flood risk listPO21 1JS: not on the flood risk listPO21 1JT: not on the flood risk listPO21 1JU: not on the flood risk listPO21 1JX: not on the flood risk listPO21 1JY: not on the flood risk listPO21 1LA: not on the flood risk listPO21 1LB: not on the flood risk listPO21 1LF: not on the flood risk listPO21 1LG: not on the flood risk listPO21 1LJ: not on the flood risk listPO21 1LL: not on the flood risk listPO21 1LP: not on the flood risk listPO21 1LR: not on the flood risk listPO21 1LS: not on the flood risk listPO21 1LU: not on the flood risk listPO21 1NH: not on the flood risk listPO21 1NJ: not on the flood risk listPO21 1NL: not on the flood risk listPO21 1NN: not on the flood risk listPO21 1NR: not on the flood risk listPO21 1NW: not on the flood risk listPO21 1NZ: not on the flood risk listPO21 1PA: not on the flood risk listPO21 1PB: not on the flood risk listPO21 1PD: not on the flood risk listPO21 1PH: not on the flood risk listPO21 1PN: not on the flood risk listPO21 1PQ: not on the flood risk listPO21 1PR: not on the flood risk listPO21 1PT: not on the flood risk listPO21 1PU: not on the flood risk listPO21 1PW: not on the flood risk listPO21 1PY: not on the flood risk listPO21 1QB: not on the flood risk listPO21 1QD: not on the flood risk listPO21 1QE: not on the flood risk listPO21 1QF: not on the flood risk listPO21 1QG: not on the flood risk listPO21 1QH: not on the flood risk listPO21 1QJ: not on the flood risk listPO21 1QL: not on the flood risk listPO21 1QN: not on the flood risk listPO21 1QQ: not on the flood risk listPO21 1QR: not on the flood risk listPO21 1QS: not on the flood risk listPO21 1QT: not on the flood risk listPO21 1QU: not on the flood risk listPO21 1QW: not on the flood risk listPO21 1QX: not on the flood risk listPO21 1RB: not on the flood risk listPO21 1RE: not on the flood risk listPO21 1RG: not on the flood risk listPO21 1RH: not on the flood risk listPO21 1RP: not on the flood risk listPO21 1RQ: not on the flood risk listPO21 1RT: not on the flood risk listPO21 1RY: not on the flood risk listPO21 1RZ: not on the flood risk listPO21 1SA: not on the flood risk listPO21 1SD: not on the flood risk listPO21 1SE: not on the flood risk listPO21 1SF: not on the flood risk listPO21 1SG: not on the flood risk listPO21 1SH: not on the flood risk listPO21 1SR: not on the flood risk listPO21 1SS: not on the flood risk listPO21 1ST: not on the flood risk listPO21 1TF: not on the flood risk listPO21 1TH: not on the flood risk listPO21 1TJ: not on the flood risk listPO21 1TU: not on the flood risk listPO21 1UF: not on the flood risk listPO21 1UJ: not on the flood risk listPO21 1UL: not on the flood risk listPO21 1UN: not on the flood risk listPO21 1UP: not on the flood risk listPO21 1UR: not on the flood risk listPO21 1UT: not on the flood risk listPO21 1UU: not on the flood risk listPO21 1UX: not on the flood risk listPO21 1XF: not on the flood risk listPO21 1XH: not on the flood risk listPO21 1XJ: not on the flood risk listPO21 1XL: not on the flood risk listPO21 1XP: not on the flood risk listPO21 1XT: not on the flood risk listPO21 1XU: not on the flood risk listPO21 1YA: not on the flood risk listPO21 1YB: not on the flood risk listPO21 1AH: very low flood risk onlyPO21 1DY: very low flood risk onlyPO21 1EA: very low flood risk onlyPO21 1EB: very low flood risk onlyPO21 1FE: very low flood risk onlyPO21 1FP: very low flood risk onlyPO21 1GH: very low flood risk onlyPO21 1GJ: very low flood risk onlyPO21 1HH: very low flood risk onlyPO21 1HR: very low flood risk onlyPO21 1HX: very low flood risk onlyPO21 1JA: very low flood risk onlyPO21 1LE: very low flood risk onlyPO21 1LX: very low flood risk onlyPO21 1LZ: very low flood risk onlyPO21 1NB: very low flood risk onlyPO21 1ND: very low flood risk onlyPO21 1NP: very low flood risk onlyPO21 1NU: very low flood risk onlyPO21 1NX: very low flood risk onlyPO21 1RJ: very low flood risk onlyPO21 1RS: very low flood risk onlyPO21 1RW: very low flood risk onlyPO21 1RX: very low flood risk onlyPO21 1SB: very low flood risk onlyPO21 1SP: very low flood risk onlyPO21 1SU: very low flood risk onlyPO21 1TB: very low flood risk onlyPO21 1TD: very low flood risk onlyPO21 1TE: very low flood risk onlyPO21 1TP: very low flood risk onlyPO21 1UA: very low flood risk onlyPO21 1UB: very low flood risk onlyPO21 1UD: very low flood risk onlyPO21 1UE: very low flood risk onlyPO21 1UH: very low flood risk onlyPO21 1UQ: very low flood risk onlyPO21 1XA: very low flood risk onlyPO21 1XD: very low flood risk onlyPO21 1XE: very low flood risk onlyPO21 1BJ: low flood risk at worstPO21 1BL: low flood risk at worstPO21 1GF: low flood risk at worstPO21 1JN: low flood risk at worstPO21 1JW: low flood risk at worstPO21 1LH: low flood risk at worstPO21 1LW: low flood risk at worstPO21 1LY: low flood risk at worstPO21 1NA: low flood risk at worstPO21 1NE: low flood risk at worstPO21 1NF: low flood risk at worstPO21 1NS: low flood risk at worstPO21 1NT: low flood risk at worstPO21 1NY: low flood risk at worstPO21 1RR: low flood risk at worstPO21 1TA: low flood risk at worstPO21 1HW: medium flood risk at worstPO21 1JJ: medium flood risk at worstPO21 1HP: high flood riskPO21 1JH: high flood riskPO21 1JL: high flood riskPO21 1JP: high flood riskPO21 1RD: high flood riskPO21 1SY: high flood riskPO21 1TR: high flood riskPO21 1TS: high flood riskPO21 1TX: high flood riskPO21 1XB: high flood riskPO21 1XX: high flood risk Bognor Regis 6 postcodes at high or medium risk, outlined: this goes to PO21 1TS, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the PO21 1 sector, by flood risk Of the 261 postcodes in the PO21 1 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 17 are at low risk at worst, 41 are at very low risk only and 190 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Bognor Regis. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Bognor Regis
  • A home or business at high risk: 11
  • At medium risk at worst: 2
  • At low risk at worst: 17
  • At very low risk only: 41
  • Not on the at-risk list: 190
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 261 postcodes in the PO21 1 sector that ONS places, 11 have a home or business at high risk, 2 are at medium risk at worst, 17 are at low risk at worst, 41 are at very low risk only and 190 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. 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.

PO21 1TS29 at high riskPO21 1XB10 at high riskPO21 1JL8 at high riskPO21 1TX6 at high riskPO21 1TR5 at high riskPO21 1HP4 at high riskPO21 1JP4 at high riskPO21 1SY3 at high riskPO21 1XX3 at high riskPO21 1RD2 at high riskPO21 1JH1 at high risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. PO21 1TS, is the one with most homes and businesses at high risk.

What do homes sell for in PO21 1?

Homes in PO21 1 sold for a typical £140,000 in the 12 months to August 2026, across 73 sales, down 16.4% on the 12 months before, HM Land Registry's figures show.

£140,000 typical price, the 12 months to August 2026
£167,500 12 months to August 2025
▼ down 16.4% on the 12 months before
  • Semi-detached £238,000 6 sales
  • Terraced 3 sales, too few to price
  • Flat or maisonette £130,400 64 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 PO21 1. 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 PO21 1

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.

PO21 1AAPO21 1ABPO21 1ADPO21 1AEPO21 1AFPO21 1AGPO21 1AHPO21 1ALPO21 1ANPO21 1APPO21 1AQPO21 1ARPO21 1ATPO21 1AUPO21 1AWPO21 1AXPO21 1AYPO21 1AZPO21 1BAPO21 1BBPO21 1BDPO21 1BEPO21 1BGPO21 1BHPO21 1BJPO21 1BLPO21 1BNPO21 1BPPO21 1BSPO21 1BTPO21 1BUPO21 1BWPO21 1BXPO21 1BYPO21 1DAPO21 1DBPO21 1DDPO21 1DEPO21 1DFPO21 1DGPO21 1DHPO21 1DJPO21 1DLPO21 1DNPO21 1DQPO21 1DRPO21 1DSPO21 1DTPO21 1DUPO21 1DWPO21 1DXPO21 1DYPO21 1DZPO21 1EAPO21 1EBPO21 1EDPO21 1EEPO21 1EFPO21 1EGPO21 1EHPO21 1EJPO21 1EPPO21 1EQPO21 1ERPO21 1ESPO21 1EUPO21 1EWPO21 1EXPO21 1EYPO21 1FBPO21 1FDPO21 1FEPO21 1FFPO21 1FGPO21 1FHPO21 1FJPO21 1FLPO21 1FNPO21 1FPPO21 1FQPO21 1FRPO21 1FSPO21 1FWPO21 1FYPO21 1GFPO21 1GHPO21 1GJPO21 1HAPO21 1HBPO21 1HDPO21 1HEPO21 1HFPO21 1HGPO21 1HHPO21 1HJPO21 1HNPO21 1HPPO21 1HQPO21 1HRPO21 1HSPO21 1HUPO21 1HWPO21 1HXPO21 1HYPO21 1HZPO21 1JAPO21 1JBPO21 1JDPO21 1JEPO21 1JFPO21 1JGPO21 1JHPO21 1JJPO21 1JLPO21 1JNPO21 1JPPO21 1JQPO21 1JSPO21 1JTPO21 1JUPO21 1JWPO21 1JXPO21 1JYPO21 1JZPO21 1LAPO21 1LBPO21 1LDPO21 1LEPO21 1LFPO21 1LGPO21 1LHPO21 1LJPO21 1LLPO21 1LPPO21 1LRPO21 1LSPO21 1LUPO21 1LWPO21 1LXPO21 1LYPO21 1LZPO21 1NAPO21 1NBPO21 1NDPO21 1NEPO21 1NFPO21 1NHPO21 1NJPO21 1NLPO21 1NNPO21 1NPPO21 1NRPO21 1NSPO21 1NTPO21 1NUPO21 1NWPO21 1NXPO21 1NYPO21 1NZPO21 1PAPO21 1PBPO21 1PDPO21 1PHPO21 1PJPO21 1PNPO21 1PQPO21 1PRPO21 1PTPO21 1PUPO21 1PWPO21 1PYPO21 1QBPO21 1QDPO21 1QEPO21 1QFPO21 1QGPO21 1QHPO21 1QJPO21 1QLPO21 1QNPO21 1QPPO21 1QQPO21 1QRPO21 1QSPO21 1QTPO21 1QUPO21 1QWPO21 1QXPO21 1RBPO21 1RDPO21 1REPO21 1RFPO21 1RGPO21 1RHPO21 1RJPO21 1RPPO21 1RQPO21 1RRPO21 1RSPO21 1RTPO21 1RWPO21 1RXPO21 1RYPO21 1RZPO21 1SAPO21 1SBPO21 1SDPO21 1SEPO21 1SFPO21 1SGPO21 1SHPO21 1SJPO21 1SPPO21 1SQPO21 1SRPO21 1SSPO21 1STPO21 1SUPO21 1SYPO21 1TAPO21 1TBPO21 1TDPO21 1TEPO21 1TFPO21 1THPO21 1TJPO21 1TPPO21 1TRPO21 1TSPO21 1TUPO21 1TXPO21 1UAPO21 1UBPO21 1UDPO21 1UEPO21 1UFPO21 1UHPO21 1UJPO21 1ULPO21 1UNPO21 1UPPO21 1UQPO21 1URPO21 1UTPO21 1UUPO21 1UXPO21 1XAPO21 1XBPO21 1XDPO21 1XEPO21 1XFPO21 1XHPO21 1XJPO21 1XLPO21 1XPPO21 1XRPO21 1XTPO21 1XUPO21 1XXPO21 1YAPO21 1YB

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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