PO20 3 postcode sector in the PO20 district

PO20 3 is a sector of the PO20 district: every postcode that starts PO20 3. It has 153 postcodes in use, one of them a large-user postcode. 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 PO20 3 sector, by flood risk

Map of every postcode in the PO20 3 sector, by flood risk Of the 153 postcodes in the PO20 3 sector that ONS places, 15 are at medium risk at worst, 22 are at low risk at worst, 1 are at very low risk only and 115 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 6 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Barnham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A29 PO20 3AA: not on the flood risk listPO20 3AB: not on the flood risk listPO20 3AD: not on the flood risk listPO20 3AE: not on the flood risk listPO20 3AF: not on the flood risk listPO20 3AG: not on the flood risk listPO20 3AH: not on the flood risk listPO20 3AJ: not on the flood risk listPO20 3AL: not on the flood risk listPO20 3AN: not on the flood risk listPO20 3AP: not on the flood risk listPO20 3AQ: not on the flood risk listPO20 3AR: not on the flood risk listPO20 3AT: not on the flood risk listPO20 3AU: not on the flood risk listPO20 3AW: not on the flood risk listPO20 3AX: not on the flood risk listPO20 3AY: not on the flood risk listPO20 3AZ: not on the flood risk listPO20 3BA: not on the flood risk listPO20 3BB: not on the flood risk listPO20 3BD: not on the flood risk listPO20 3BE: not on the flood risk listPO20 3BG: not on the flood risk listPO20 3BH: not on the flood risk listPO20 3BJ: not on the flood risk listPO20 3BL: not on the flood risk listPO20 3BN: not on the flood risk listPO20 3BP: not on the flood risk listPO20 3BQ: not on the flood risk listPO20 3BS: not on the flood risk listPO20 3BT: not on the flood risk listPO20 3BU: not on the flood risk listPO20 3BW: not on the flood risk listPO20 3BX: not on the flood risk listPO20 3BY: not on the flood risk listPO20 3BZ: not on the flood risk listPO20 3DA: not on the flood risk listPO20 3DB: not on the flood risk listPO20 3DD: not on the flood risk listPO20 3DE: not on the flood risk listPO20 3DF: not on the flood risk listPO20 3DG: not on the flood risk listPO20 3GX: not on the flood risk listPO20 3JT: not on the flood risk listPO20 3NH: not on the flood risk listPO20 3NJ: not on the flood risk listPO20 3QG: not on the flood risk listPO20 3QL: not on the flood risk listPO20 3QN: not on the flood risk listPO20 3QP: not on the flood risk listPO20 3QR: not on the flood risk listPO20 3QW: not on the flood risk listPO20 3RA: not on the flood risk listPO20 3RB: not on the flood risk listPO20 3RD: not on the flood risk listPO20 3RE: not on the flood risk listPO20 3RF: not on the flood risk listPO20 3RG: not on the flood risk listPO20 3RP: not on the flood risk listPO20 3RQ: not on the flood risk listPO20 3RR: not on the flood risk listPO20 3RS: not on the flood risk listPO20 3RT: not on the flood risk listPO20 3RX: not on the flood risk listPO20 3RY: not on the flood risk listPO20 3RZ: not on the flood risk listPO20 3SA: not on the flood risk listPO20 3SB: not on the flood risk listPO20 3SD: not on the flood risk listPO20 3SE: not on the flood risk listPO20 3SF: not on the flood risk listPO20 3SH: not on the flood risk listPO20 3SJ: not on the flood risk listPO20 3SL: not on the flood risk listPO20 3SQ: not on the flood risk listPO20 3SR: not on the flood risk listPO20 3SS: not on the flood risk listPO20 3ST: not on the flood risk listPO20 3SU: not on the flood risk listPO20 3SX: not on the flood risk listPO20 3TA: not on the flood risk listPO20 3TB: not on the flood risk listPO20 3TD: not on the flood risk listPO20 3TE: not on the flood risk listPO20 3TG: not on the flood risk listPO20 3TH: not on the flood risk listPO20 3TQ: not on the flood risk listPO20 3TU: not on the flood risk listPO20 3TX: not on the flood risk listPO20 3UA: not on the flood risk listPO20 3UE: not on the flood risk listPO20 3UF: not on the flood risk listPO20 3UL: not on the flood risk listPO20 3UU: not on the flood risk listPO20 3UX: not on the flood risk listPO20 3UY: not on the flood risk listPO20 3UZ: not on the flood risk listPO20 3WN: not on the flood risk listPO20 3WW: not on the flood risk listPO20 3XA: not on the flood risk listPO20 3XB: not on the flood risk listPO20 3XD: not on the flood risk listPO20 3XE: not on the flood risk listPO20 3XH: not on the flood risk listPO20 3XR: not on the flood risk listPO20 3XS: not on the flood risk listPO20 3XT: not on the flood risk listPO20 3XU: not on the flood risk listPO20 3XX: not on the flood risk listPO20 3YD: not on the flood risk listPO20 3YH: not on the flood risk listPO20 3YP: not on the flood risk listPO20 3YR: not on the flood risk listPO20 3YS: not on the flood risk listPO20 3TF: very low flood risk onlyPO20 3AS: low flood risk at worstPO20 3GU: low flood risk at worstPO20 3QJ: low flood risk at worstPO20 3QX: low flood risk at worstPO20 3QY: low flood risk at worstPO20 3RJ: low flood risk at worstPO20 3RL: low flood risk at worstPO20 3RU: low flood risk at worstPO20 3TJ: low flood risk at worstPO20 3TR: low flood risk at worstPO20 3TS: low flood risk at worstPO20 3TT: low flood risk at worstPO20 3UB: low flood risk at worstPO20 3UG: low flood risk at worstPO20 3UJ: low flood risk at worstPO20 3UP: low flood risk at worstPO20 3UR: low flood risk at worstPO20 3US: low flood risk at worstPO20 3UT: low flood risk at worstPO20 3UW: low flood risk at worstPO20 3WH: low flood risk at worstPO20 3YX: low flood risk at worstPO20 3QS: medium flood risk at worstPO20 3QT: medium flood risk at worstPO20 3QU: medium flood risk at worstPO20 3QZ: medium flood risk at worstPO20 3RH: medium flood risk at worstPO20 3TL: medium flood risk at worstPO20 3TP: medium flood risk at worstPO20 3UD: medium flood risk at worstPO20 3UH: medium flood risk at worstPO20 3UN: medium flood risk at worstPO20 3UQ: medium flood risk at worstPO20 3XL: medium flood risk at worstPO20 3YA: medium flood risk at worstPO20 3YL: medium flood risk at worstPO20 3YT: medium flood risk at worst Barnham 6 postcodes at high or medium risk, outlined: this goes to PO20 3XL, the one with most homes and businesses at high risk6 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to PO20 3UD, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in the PO20 3 sector, by flood risk Of the 153 postcodes in the PO20 3 sector that ONS places, 15 are at medium risk at worst, 22 are at low risk at worst, 1 are at very low risk only and 115 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 6 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Barnham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Barnham 6 postcodes at high or medium risk, outlined: this goes to PO20 3XL, the one with most homes and businesses at high risk6 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to PO20 3UD, the one with most homes and businesses at high risk6 postcodes at high or medium risk
  • A home or business at high risk: 0
  • At medium risk at worst: 15
  • At low risk at worst: 22
  • At very low risk only: 1
  • Not on the at-risk list: 115
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 153 postcodes in the PO20 3 sector that ONS places, 15 are at medium risk at worst, 22 are at low risk at worst, 1 are at very low risk only and 115 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 160 metres of each other. It is not a boundary, and no boundary is drawn.

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 medium risk at worst

15 postcodes here are at medium risk at worst. 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.

PO20 3XL20 at medium riskPO20 3QU15 at medium riskPO20 3QZ15 at medium riskPO20 3UD13 at medium riskPO20 3QT12 at medium riskPO20 3RH11 at medium riskPO20 3YT3 at medium riskPO20 3QS1 at medium riskPO20 3TL1 at medium riskPO20 3TP1 at medium riskPO20 3UH1 at medium riskPO20 3UN1 at medium risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. PO20 3XL, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. PO20 3UD, is the one with most homes and businesses at high risk.

What do homes sell for in PO20 3?

Homes in PO20 3 sold for a typical £374,500 in the 12 months to August 2026, across 80 sales, up 4% on the 12 months before, HM Land Registry's figures show.

£374,500 typical price, the 12 months to August 2026
£359,995 12 months to August 2025
▲ up 4% on the 12 months before
  • Detached £550,500 40 sales
  • Semi-detached £355,000 29 sales
  • Terraced £290,000 9 sales
  • Flat or maisonette 2 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 PO20 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 PO20 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.

PO20 3AAPO20 3ABPO20 3ADPO20 3AEPO20 3AFPO20 3AGPO20 3AHPO20 3AJPO20 3ALPO20 3ANPO20 3APPO20 3AQPO20 3ARPO20 3ASPO20 3ATPO20 3AUPO20 3AWPO20 3AXPO20 3AYPO20 3AZPO20 3BAPO20 3BBPO20 3BDPO20 3BEPO20 3BGPO20 3BHPO20 3BJPO20 3BLPO20 3BNPO20 3BPPO20 3BQPO20 3BSPO20 3BTPO20 3BUPO20 3BWPO20 3BXPO20 3BYPO20 3BZPO20 3DAPO20 3DBPO20 3DDPO20 3DEPO20 3DFPO20 3DGPO20 3GUPO20 3GXPO20 3JTPO20 3NHPO20 3NJPO20 3QGPO20 3QJPO20 3QLPO20 3QNPO20 3QPPO20 3QRPO20 3QSPO20 3QTPO20 3QUPO20 3QWPO20 3QXPO20 3QYPO20 3QZPO20 3RAPO20 3RBPO20 3RDPO20 3REPO20 3RFPO20 3RGPO20 3RHPO20 3RJPO20 3RLPO20 3RPPO20 3RQPO20 3RRPO20 3RSPO20 3RTPO20 3RUPO20 3RXPO20 3RYPO20 3RZPO20 3SAPO20 3SBPO20 3SDPO20 3SEPO20 3SFPO20 3SHPO20 3SJPO20 3SLPO20 3SQPO20 3SRPO20 3SSPO20 3STPO20 3SUPO20 3SXPO20 3TAPO20 3TBPO20 3TDPO20 3TEPO20 3TFPO20 3TGPO20 3THPO20 3TJPO20 3TLPO20 3TPPO20 3TQPO20 3TRPO20 3TSPO20 3TTPO20 3TUPO20 3TXPO20 3UAPO20 3UBPO20 3UDPO20 3UEPO20 3UFPO20 3UGPO20 3UHPO20 3UJPO20 3ULPO20 3UNPO20 3UPPO20 3UQPO20 3URPO20 3USPO20 3UTPO20 3UUPO20 3UWPO20 3UXPO20 3UYPO20 3UZPO20 3WHPO20 3WNPO20 3WWPO20 3XAPO20 3XBPO20 3XDPO20 3XEPO20 3XHPO20 3XLPO20 3XRPO20 3XSPO20 3XTPO20 3XUPO20 3XXPO20 3YAPO20 3YDPO20 3YHPO20 3YLPO20 3YPPO20 3YRPO20 3YSPO20 3YTPO20 3YX

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.