PO21 3 postcode sector in the PO21 district

PO21 3 is a sector of the PO21 district: every postcode that starts PO21 3. It has 279 postcodes in use, 4 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 3 sector, by flood risk

Map of every postcode in the PO21 3 sector, by flood risk Of the 279 postcodes in the PO21 3 sector that ONS places, 4 are at low risk at worst, 10 are at very low risk only and 265 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Aldwick West, Pagham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. PO21 3AA: not on the flood risk listPO21 3AB: not on the flood risk listPO21 3AD: not on the flood risk listPO21 3AE: not on the flood risk listPO21 3AF: not on the flood risk listPO21 3AJ: not on the flood risk listPO21 3AL: not on the flood risk listPO21 3AN: not on the flood risk listPO21 3AP: not on the flood risk listPO21 3AR: not on the flood risk listPO21 3AS: not on the flood risk listPO21 3AT: not on the flood risk listPO21 3AU: not on the flood risk listPO21 3AW: not on the flood risk listPO21 3AX: not on the flood risk listPO21 3AY: not on the flood risk listPO21 3AZ: not on the flood risk listPO21 3BA: not on the flood risk listPO21 3BB: not on the flood risk listPO21 3BD: not on the flood risk listPO21 3BE: not on the flood risk listPO21 3BG: not on the flood risk listPO21 3BH: not on the flood risk listPO21 3BJ: not on the flood risk listPO21 3BL: not on the flood risk listPO21 3BN: not on the flood risk listPO21 3BP: not on the flood risk listPO21 3BQ: not on the flood risk listPO21 3BS: not on the flood risk listPO21 3BT: not on the flood risk listPO21 3BU: not on the flood risk listPO21 3BW: not on the flood risk listPO21 3BX: not on the flood risk listPO21 3BY: not on the flood risk listPO21 3BZ: not on the flood risk listPO21 3DA: not on the flood risk listPO21 3DB: not on the flood risk listPO21 3DD: not on the flood risk listPO21 3DE: not on the flood risk listPO21 3DF: not on the flood risk listPO21 3DJ: not on the flood risk listPO21 3DL: not on the flood risk listPO21 3DN: not on the flood risk listPO21 3DP: not on the flood risk listPO21 3DR: not on the flood risk listPO21 3DS: not on the flood risk listPO21 3DT: not on the flood risk listPO21 3DU: not on the flood risk listPO21 3DW: not on the flood risk listPO21 3DX: not on the flood risk listPO21 3DY: not on the flood risk listPO21 3DZ: not on the flood risk listPO21 3EB: not on the flood risk listPO21 3ED: not on the flood risk listPO21 3EE: not on the flood risk listPO21 3EF: not on the flood risk listPO21 3EG: not on the flood risk listPO21 3EH: not on the flood risk listPO21 3EJ: not on the flood risk listPO21 3EL: not on the flood risk listPO21 3EN: not on the flood risk listPO21 3EP: not on the flood risk listPO21 3EQ: not on the flood risk listPO21 3ER: not on the flood risk listPO21 3ES: not on the flood risk listPO21 3ET: not on the flood risk listPO21 3EU: not on the flood risk listPO21 3EW: not on the flood risk listPO21 3EX: not on the flood risk listPO21 3EY: not on the flood risk listPO21 3EZ: not on the flood risk listPO21 3FE: not on the flood risk listPO21 3FF: not on the flood risk listPO21 3FH: not on the flood risk listPO21 3FJ: not on the flood risk listPO21 3FL: not on the flood risk listPO21 3FN: not on the flood risk listPO21 3FP: not on the flood risk listPO21 3FQ: not on the flood risk listPO21 3FR: not on the flood risk listPO21 3FS: not on the flood risk listPO21 3FT: not on the flood risk listPO21 3FU: not on the flood risk listPO21 3GB: not on the flood risk listPO21 3GD: not on the flood risk listPO21 3HA: not on the flood risk listPO21 3HD: not on the flood risk listPO21 3HE: not on the flood risk listPO21 3HF: not on the flood risk listPO21 3HG: not on the flood risk listPO21 3HH: not on the flood risk listPO21 3HJ: not on the flood risk listPO21 3HL: not on the flood risk listPO21 3HN: not on the flood risk listPO21 3HP: not on the flood risk listPO21 3HQ: not on the flood risk listPO21 3HR: not on the flood risk listPO21 3HS: not on the flood risk listPO21 3HT: not on the flood risk listPO21 3HU: not on the flood risk listPO21 3HW: not on the flood risk listPO21 3HX: not on the flood risk listPO21 3HY: not on the flood risk listPO21 3JB: not on the flood risk listPO21 3JH: not on the flood risk listPO21 3JJ: not on the flood risk listPO21 3JL: not on the flood risk listPO21 3JN: not on the flood risk listPO21 3JP: not on the flood risk listPO21 3JQ: not on the flood risk listPO21 3JR: not on the flood risk listPO21 3JS: not on the flood risk listPO21 3JT: not on the flood risk listPO21 3JU: not on the flood risk listPO21 3JW: not on the flood risk listPO21 3JX: not on the flood risk listPO21 3JY: not on the flood risk listPO21 3JZ: not on the flood risk listPO21 3LA: not on the flood risk listPO21 3LB: not on the flood risk listPO21 3LD: not on the flood risk listPO21 3LE: not on the flood risk listPO21 3LF: not on the flood risk listPO21 3LG: not on the flood risk listPO21 3LH: not on the flood risk listPO21 3LJ: not on the flood risk listPO21 3LL: not on the flood risk listPO21 3LN: not on the flood risk listPO21 3LP: not on the flood risk listPO21 3LQ: not on the flood risk listPO21 3LR: not on the flood risk listPO21 3LS: not on the flood risk listPO21 3LT: not on the flood risk listPO21 3LU: not on the flood risk listPO21 3LW: not on the flood risk listPO21 3LX: not on the flood risk listPO21 3NA: not on the flood risk listPO21 3NG: not on the flood risk listPO21 3NH: not on the flood risk listPO21 3NJ: not on the flood risk listPO21 3NL: not on the flood risk listPO21 3NN: not on the flood risk listPO21 3NP: not on the flood risk listPO21 3NQ: not on the flood risk listPO21 3NR: not on the flood risk listPO21 3NS: not on the flood risk listPO21 3NT: not on the flood risk listPO21 3NU: not on the flood risk listPO21 3NW: not on the flood risk listPO21 3NX: not on the flood risk listPO21 3NY: not on the flood risk listPO21 3NZ: not on the flood risk listPO21 3PA: not on the flood risk listPO21 3PB: not on the flood risk listPO21 3PD: not on the flood risk listPO21 3PE: not on the flood risk listPO21 3PF: not on the flood risk listPO21 3PG: not on the flood risk listPO21 3PH: not on the flood risk listPO21 3PJ: not on the flood risk listPO21 3PL: not on the flood risk listPO21 3PN: not on the flood risk listPO21 3PQ: not on the flood risk listPO21 3PR: not on the flood risk listPO21 3PS: not on the flood risk listPO21 3PU: not on the flood risk listPO21 3PW: not on the flood risk listPO21 3PY: not on the flood risk listPO21 3PZ: not on the flood risk listPO21 3QA: not on the flood risk listPO21 3QB: not on the flood risk listPO21 3QD: not on the flood risk listPO21 3QE: not on the flood risk listPO21 3QG: not on the flood risk listPO21 3QH: not on the flood risk listPO21 3QJ: not on the flood risk listPO21 3QL: not on the flood risk listPO21 3QN: not on the flood risk listPO21 3QP: not on the flood risk listPO21 3QQ: not on the flood risk listPO21 3QR: not on the flood risk listPO21 3QS: not on the flood risk listPO21 3QT: not on the flood risk listPO21 3QU: not on the flood risk listPO21 3QW: not on the flood risk listPO21 3QX: not on the flood risk listPO21 3RA: not on the flood risk listPO21 3RB: not on the flood risk listPO21 3RD: not on the flood risk listPO21 3RE: not on the flood risk listPO21 3RF: not on the flood risk listPO21 3RG: not on the flood risk listPO21 3RH: not on the flood risk listPO21 3RJ: not on the flood risk listPO21 3RL: not on the flood risk listPO21 3RN: not on the flood risk listPO21 3RP: not on the flood risk listPO21 3RQ: not on the flood risk listPO21 3RR: not on the flood risk listPO21 3RS: not on the flood risk listPO21 3RT: not on the flood risk listPO21 3RU: not on the flood risk listPO21 3RW: not on the flood risk listPO21 3RX: not on the flood risk listPO21 3RY: not on the flood risk listPO21 3RZ: not on the flood risk listPO21 3SA: not on the flood risk listPO21 3SB: not on the flood risk listPO21 3SD: not on the flood risk listPO21 3SE: not on the flood risk listPO21 3SF: not on the flood risk listPO21 3SJ: not on the flood risk listPO21 3SL: not on the flood risk listPO21 3SN: not on the flood risk listPO21 3SP: not on the flood risk listPO21 3SQ: not on the flood risk listPO21 3SR: not on the flood risk listPO21 3SS: not on the flood risk listPO21 3ST: not on the flood risk listPO21 3SU: not on the flood risk listPO21 3SW: not on the flood risk listPO21 3SY: not on the flood risk listPO21 3SZ: not on the flood risk listPO21 3TA: not on the flood risk listPO21 3TB: not on the flood risk listPO21 3TD: not on the flood risk listPO21 3TE: not on the flood risk listPO21 3TF: not on the flood risk listPO21 3TG: not on the flood risk listPO21 3TH: not on the flood risk listPO21 3TJ: not on the flood risk listPO21 3TL: not on the flood risk listPO21 3TN: not on the flood risk listPO21 3TP: not on the flood risk listPO21 3TQ: not on the flood risk listPO21 3TS: not on the flood risk listPO21 3TT: not on the flood risk listPO21 3TU: not on the flood risk listPO21 3TW: not on the flood risk listPO21 3TX: not on the flood risk listPO21 3TY: not on the flood risk listPO21 3TZ: not on the flood risk listPO21 3UA: not on the flood risk listPO21 3UB: not on the flood risk listPO21 3UD: not on the flood risk listPO21 3UE: not on the flood risk listPO21 3UF: not on the flood risk listPO21 3UG: not on the flood risk listPO21 3UH: not on the flood risk listPO21 3UJ: not on the flood risk listPO21 3UP: not on the flood risk listPO21 3UQ: not on the flood risk listPO21 3UR: not on the flood risk listPO21 3US: not on the flood risk listPO21 3UT: not on the flood risk listPO21 3UU: not on the flood risk listPO21 3UW: not on the flood risk listPO21 3UX: not on the flood risk listPO21 3UY: not on the flood risk listPO21 3UZ: not on the flood risk listPO21 3WD: not on the flood risk listPO21 3WE: not on the flood risk listPO21 3DG: very low flood risk onlyPO21 3DH: very low flood risk onlyPO21 3DQ: very low flood risk onlyPO21 3FA: very low flood risk onlyPO21 3FB: very low flood risk onlyPO21 3FD: very low flood risk onlyPO21 3ND: very low flood risk onlyPO21 3PT: very low flood risk onlyPO21 3PX: very low flood risk onlyPO21 3SG: very low flood risk onlyPO21 3AG: low flood risk at worstPO21 3AH: low flood risk at worstPO21 3AQ: low flood risk at worstPO21 3FG: low flood risk at worst Aldwick WestPagham Map of every postcode in the PO21 3 sector, by flood risk Of the 279 postcodes in the PO21 3 sector that ONS places, 4 are at low risk at worst, 10 are at very low risk only and 265 are not on the Environment Agency's at-risk list. 2 postcodes lie beyond the edge and are listed under the map. Places named: Aldwick West, Pagham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Aldwick WestPagham
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 4
  • At very low risk only: 10
  • Not on the at-risk list: 265

Of the 279 postcodes in the PO21 3 sector that ONS places, 4 are at low risk at worst, 10 are at very low risk only and 265 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. 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

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

PO21 3PXPO21 3YU

What do homes sell for in PO21 3?

Homes in PO21 3 sold for a typical £377,500 in the 12 months to August 2026, across 106 sales, up 7.9% on the 12 months before, HM Land Registry's figures show.

£377,500 typical price, the 12 months to August 2026
£350,000 12 months to August 2025
▲ up 7.9% on the 12 months before
  • Detached £430,000 51 sales
  • Semi-detached £344,000 29 sales
  • Terraced £297,500 12 sales
  • Flat or maisonette £176,500 14 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 3. 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 3

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 3AAPO21 3ABPO21 3ADPO21 3AEPO21 3AFPO21 3AGPO21 3AHPO21 3AJPO21 3ALPO21 3ANPO21 3APPO21 3AQPO21 3ARPO21 3ASPO21 3ATPO21 3AUPO21 3AWPO21 3AXPO21 3AYPO21 3AZPO21 3BAPO21 3BBPO21 3BDPO21 3BEPO21 3BGPO21 3BHPO21 3BJPO21 3BLPO21 3BNPO21 3BPPO21 3BQPO21 3BSPO21 3BTPO21 3BUPO21 3BWPO21 3BXPO21 3BYPO21 3BZPO21 3DAPO21 3DBPO21 3DDPO21 3DEPO21 3DFPO21 3DGPO21 3DHPO21 3DJPO21 3DLPO21 3DNPO21 3DPPO21 3DQPO21 3DRPO21 3DSPO21 3DTPO21 3DUPO21 3DWPO21 3DXPO21 3DYPO21 3DZPO21 3EBPO21 3EDPO21 3EEPO21 3EFPO21 3EGPO21 3EHPO21 3EJPO21 3ELPO21 3ENPO21 3EPPO21 3EQPO21 3ERPO21 3ESPO21 3ETPO21 3EUPO21 3EWPO21 3EXPO21 3EYPO21 3EZPO21 3FAPO21 3FBPO21 3FDPO21 3FEPO21 3FFPO21 3FGPO21 3FHPO21 3FJPO21 3FLPO21 3FNPO21 3FPPO21 3FQPO21 3FRPO21 3FSPO21 3FTPO21 3FUPO21 3FZPO21 3GBPO21 3GDPO21 3HAPO21 3HBPO21 3HDPO21 3HEPO21 3HFPO21 3HGPO21 3HHPO21 3HJPO21 3HLPO21 3HNPO21 3HPPO21 3HQPO21 3HRPO21 3HSPO21 3HTPO21 3HUPO21 3HWPO21 3HXPO21 3HYPO21 3JBPO21 3JHPO21 3JJPO21 3JLPO21 3JNPO21 3JPPO21 3JQPO21 3JRPO21 3JSPO21 3JTPO21 3JUPO21 3JWPO21 3JXPO21 3JYPO21 3JZPO21 3LAPO21 3LBPO21 3LDPO21 3LEPO21 3LFPO21 3LGPO21 3LHPO21 3LJPO21 3LLPO21 3LNPO21 3LPPO21 3LQPO21 3LRPO21 3LSPO21 3LTPO21 3LUPO21 3LWPO21 3LXPO21 3NAPO21 3NDPO21 3NGPO21 3NHPO21 3NJPO21 3NLPO21 3NNPO21 3NPPO21 3NQPO21 3NRPO21 3NSPO21 3NTPO21 3NUPO21 3NWPO21 3NXPO21 3NYPO21 3NZPO21 3PAPO21 3PBPO21 3PDPO21 3PEPO21 3PFPO21 3PGPO21 3PHPO21 3PJPO21 3PLPO21 3PNPO21 3PQPO21 3PRPO21 3PSPO21 3PTPO21 3PUPO21 3PWPO21 3PXPO21 3PYPO21 3PZPO21 3QAPO21 3QBPO21 3QDPO21 3QEPO21 3QGPO21 3QHPO21 3QJPO21 3QLPO21 3QNPO21 3QPPO21 3QQPO21 3QRPO21 3QSPO21 3QTPO21 3QUPO21 3QWPO21 3QXPO21 3RAPO21 3RBPO21 3RDPO21 3REPO21 3RFPO21 3RGPO21 3RHPO21 3RJPO21 3RLPO21 3RNPO21 3RPPO21 3RQPO21 3RRPO21 3RSPO21 3RTPO21 3RUPO21 3RWPO21 3RXPO21 3RYPO21 3RZPO21 3SAPO21 3SBPO21 3SDPO21 3SEPO21 3SFPO21 3SGPO21 3SJPO21 3SLPO21 3SNPO21 3SPPO21 3SQPO21 3SRPO21 3SSPO21 3STPO21 3SUPO21 3SWPO21 3SYPO21 3SZPO21 3TAPO21 3TBPO21 3TDPO21 3TEPO21 3TFPO21 3TGPO21 3THPO21 3TJPO21 3TLPO21 3TNPO21 3TPPO21 3TQPO21 3TSPO21 3TTPO21 3TUPO21 3TWPO21 3TXPO21 3TYPO21 3TZPO21 3UAPO21 3UBPO21 3UDPO21 3UEPO21 3UFPO21 3UGPO21 3UHPO21 3UJPO21 3UPPO21 3UQPO21 3URPO21 3USPO21 3UTPO21 3UUPO21 3UWPO21 3UXPO21 3UYPO21 3UZPO21 3WDPO21 3WEPO21 3YU

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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