RH20 3 postcode sector in the RH20 district

RH20 3 is a sector of the RH20 district: every postcode that starts RH20 3. It has 209 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 RH20 3 sector, by flood risk

Map of every postcode in the RH20 3 sector, by flood risk Of the 209 postcodes in the RH20 3 sector that ONS places, 11 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst and 190 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Storrington, Ashington, Horsham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. RH20 3AA: not on the flood risk listRH20 3AB: not on the flood risk listRH20 3AD: not on the flood risk listRH20 3AE: not on the flood risk listRH20 3AF: not on the flood risk listRH20 3AG: not on the flood risk listRH20 3AH: not on the flood risk listRH20 3AJ: not on the flood risk listRH20 3AL: not on the flood risk listRH20 3AN: not on the flood risk listRH20 3AP: not on the flood risk listRH20 3AQ: not on the flood risk listRH20 3AR: not on the flood risk listRH20 3AS: not on the flood risk listRH20 3AT: not on the flood risk listRH20 3AU: not on the flood risk listRH20 3AW: not on the flood risk listRH20 3AX: not on the flood risk listRH20 3AY: not on the flood risk listRH20 3AZ: not on the flood risk listRH20 3BA: not on the flood risk listRH20 3BE: not on the flood risk listRH20 3BF: not on the flood risk listRH20 3BH: not on the flood risk listRH20 3BL: not on the flood risk listRH20 3BN: not on the flood risk listRH20 3BP: not on the flood risk listRH20 3BQ: not on the flood risk listRH20 3BS: not on the flood risk listRH20 3BT: not on the flood risk listRH20 3BU: not on the flood risk listRH20 3BW: not on the flood risk listRH20 3BY: not on the flood risk listRH20 3BZ: not on the flood risk listRH20 3DB: not on the flood risk listRH20 3DF: not on the flood risk listRH20 3DH: not on the flood risk listRH20 3DJ: not on the flood risk listRH20 3DL: not on the flood risk listRH20 3DN: not on the flood risk listRH20 3DT: not on the flood risk listRH20 3DZ: not on the flood risk listRH20 3EA: not on the flood risk listRH20 3EB: not on the flood risk listRH20 3ED: not on the flood risk listRH20 3EE: not on the flood risk listRH20 3EF: not on the flood risk listRH20 3EG: not on the flood risk listRH20 3EH: not on the flood risk listRH20 3EJ: not on the flood risk listRH20 3EL: not on the flood risk listRH20 3EN: not on the flood risk listRH20 3EP: not on the flood risk listRH20 3EQ: not on the flood risk listRH20 3ER: not on the flood risk listRH20 3ES: not on the flood risk listRH20 3ET: not on the flood risk listRH20 3EU: not on the flood risk listRH20 3EW: not on the flood risk listRH20 3EX: not on the flood risk listRH20 3EY: not on the flood risk listRH20 3FU: not on the flood risk listRH20 3GH: not on the flood risk listRH20 3GJ: not on the flood risk listRH20 3GL: not on the flood risk listRH20 3GN: not on the flood risk listRH20 3GP: not on the flood risk listRH20 3GR: not on the flood risk listRH20 3GS: not on the flood risk listRH20 3GT: not on the flood risk listRH20 3GU: not on the flood risk listRH20 3GW: not on the flood risk listRH20 3GY: not on the flood risk listRH20 3GZ: not on the flood risk listRH20 3HA: not on the flood risk listRH20 3HB: not on the flood risk listRH20 3HD: not on the flood risk listRH20 3HE: not on the flood risk listRH20 3HF: not on the flood risk listRH20 3HG: not on the flood risk listRH20 3HH: not on the flood risk listRH20 3HJ: not on the flood risk listRH20 3HL: not on the flood risk listRH20 3HN: not on the flood risk listRH20 3HP: not on the flood risk listRH20 3HQ: not on the flood risk listRH20 3HR: not on the flood risk listRH20 3HS: not on the flood risk listRH20 3HT: not on the flood risk listRH20 3HU: not on the flood risk listRH20 3HW: not on the flood risk listRH20 3HX: not on the flood risk listRH20 3HY: not on the flood risk listRH20 3HZ: not on the flood risk listRH20 3JA: not on the flood risk listRH20 3JB: not on the flood risk listRH20 3JD: not on the flood risk listRH20 3JE: not on the flood risk listRH20 3JF: not on the flood risk listRH20 3JG: not on the flood risk listRH20 3JH: not on the flood risk listRH20 3JJ: not on the flood risk listRH20 3JL: not on the flood risk listRH20 3JN: not on the flood risk listRH20 3JP: not on the flood risk listRH20 3JQ: not on the flood risk listRH20 3JR: not on the flood risk listRH20 3JS: not on the flood risk listRH20 3JT: not on the flood risk listRH20 3JU: not on the flood risk listRH20 3JW: not on the flood risk listRH20 3JY: not on the flood risk listRH20 3JZ: not on the flood risk listRH20 3LA: not on the flood risk listRH20 3LB: not on the flood risk listRH20 3LE: not on the flood risk listRH20 3LF: not on the flood risk listRH20 3LG: not on the flood risk listRH20 3LH: not on the flood risk listRH20 3LJ: not on the flood risk listRH20 3LL: not on the flood risk listRH20 3LN: not on the flood risk listRH20 3LP: not on the flood risk listRH20 3LQ: not on the flood risk listRH20 3LR: not on the flood risk listRH20 3LS: not on the flood risk listRH20 3LU: not on the flood risk listRH20 3LW: not on the flood risk listRH20 3LX: not on the flood risk listRH20 3LY: not on the flood risk listRH20 3LZ: not on the flood risk listRH20 3NA: not on the flood risk listRH20 3NB: not on the flood risk listRH20 3ND: not on the flood risk listRH20 3NE: not on the flood risk listRH20 3NF: not on the flood risk listRH20 3NG: not on the flood risk listRH20 3NH: not on the flood risk listRH20 3NJ: not on the flood risk listRH20 3NL: not on the flood risk listRH20 3NN: not on the flood risk listRH20 3NP: not on the flood risk listRH20 3NQ: not on the flood risk listRH20 3NR: not on the flood risk listRH20 3NZ: not on the flood risk listRH20 3PA: not on the flood risk listRH20 3PB: not on the flood risk listRH20 3PD: not on the flood risk listRH20 3PE: not on the flood risk listRH20 3PF: not on the flood risk listRH20 3PH: not on the flood risk listRH20 3PJ: not on the flood risk listRH20 3PN: not on the flood risk listRH20 3PP: not on the flood risk listRH20 3PT: not on the flood risk listRH20 3PU: not on the flood risk listRH20 3PW: not on the flood risk listRH20 3PX: not on the flood risk listRH20 3PY: not on the flood risk listRH20 3PZ: not on the flood risk listRH20 3QA: not on the flood risk listRH20 3QB: not on the flood risk listRH20 3QD: not on the flood risk listRH20 3QE: not on the flood risk listRH20 3QF: not on the flood risk listRH20 3QG: not on the flood risk listRH20 3QH: not on the flood risk listRH20 3QJ: not on the flood risk listRH20 3QN: not on the flood risk listRH20 3QP: not on the flood risk listRH20 3QQ: not on the flood risk listRH20 3QR: not on the flood risk listRH20 3QS: not on the flood risk listRH20 3QW: not on the flood risk listRH20 3QX: not on the flood risk listRH20 3QY: not on the flood risk listRH20 3QZ: not on the flood risk listRH20 3RA: not on the flood risk listRH20 3RB: not on the flood risk listRH20 3RD: not on the flood risk listRH20 3RE: not on the flood risk listRH20 3RF: not on the flood risk listRH20 3RH: not on the flood risk listRH20 3RJ: not on the flood risk listRH20 3WN: not on the flood risk listRH20 3NX: low flood risk at worstRH20 3PG: low flood risk at worstRH20 3PQ: low flood risk at worstRH20 3PR: low flood risk at worstRH20 3DA: medium flood risk at worstRH20 3DD: medium flood risk at worstRH20 3DG: medium flood risk at worstRH20 3JX: medium flood risk at worstRH20 3BB: high flood riskRH20 3BD: high flood riskRH20 3BG: high flood riskRH20 3BX: high flood riskRH20 3DE: high flood riskRH20 3EZ: high flood riskRH20 3NS: high flood riskRH20 3NT: high flood riskRH20 3NU: high flood riskRH20 3NW: high flood riskRH20 3NY: high flood risk StorringtonAshington, Horsham 5 postcodes at high or medium risk, outlined: this goes to RH20 3NY, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the RH20 3 sector, by flood risk Of the 209 postcodes in the RH20 3 sector that ONS places, 11 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst and 190 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Storrington, Ashington, Horsham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A283 StorringtonAshington, Horsham
  • A home or business at high risk: 11
  • At medium risk at worst: 4
  • At low risk at worst: 4
  • At very low risk only: 0
  • Not on the at-risk list: 190
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 209 postcodes in the RH20 3 sector that ONS places, 11 have a home or business at high risk, 4 are at medium risk at worst, 4 are at low risk at worst 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 190 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.

RH20 3NY14 at high riskRH20 3NS9 at high riskRH20 3NT7 at high riskRH20 3BX4 at high riskRH20 3BB3 at high riskRH20 3DE3 at high riskRH20 3BD2 at high riskRH20 3EZ2 at high riskRH20 3NU2 at high riskRH20 3NW1 at high riskRH20 3BG1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. RH20 3NY, is the one with most homes and businesses at high risk.

What do homes sell for in RH20 3?

Homes in RH20 3 sold for a typical £524,000 in the 12 months to August 2026, across 88 sales, up 5.3% on the 12 months before, HM Land Registry's figures show.

£524,000 typical price, the 12 months to August 2026
£497,500 12 months to August 2025
▲ up 5.3% on the 12 months before
  • Detached £635,000 55 sales
  • Semi-detached £425,000 18 sales
  • Terraced £356,250 8 sales
  • Flat or maisonette £185,000 7 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 RH20 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 RH20 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.

RH20 3AARH20 3ABRH20 3ADRH20 3AERH20 3AFRH20 3AGRH20 3AHRH20 3AJRH20 3ALRH20 3ANRH20 3APRH20 3AQRH20 3ARRH20 3ASRH20 3ATRH20 3AURH20 3AWRH20 3AXRH20 3AYRH20 3AZRH20 3BARH20 3BBRH20 3BDRH20 3BERH20 3BFRH20 3BGRH20 3BHRH20 3BLRH20 3BNRH20 3BPRH20 3BQRH20 3BSRH20 3BTRH20 3BURH20 3BWRH20 3BXRH20 3BYRH20 3BZRH20 3DARH20 3DBRH20 3DDRH20 3DERH20 3DFRH20 3DGRH20 3DHRH20 3DJRH20 3DLRH20 3DNRH20 3DQRH20 3DTRH20 3DWRH20 3DZRH20 3EARH20 3EBRH20 3EDRH20 3EERH20 3EFRH20 3EGRH20 3EHRH20 3EJRH20 3ELRH20 3ENRH20 3EPRH20 3EQRH20 3ERRH20 3ESRH20 3ETRH20 3EURH20 3EWRH20 3EXRH20 3EYRH20 3EZRH20 3FURH20 3GHRH20 3GJRH20 3GLRH20 3GNRH20 3GPRH20 3GRRH20 3GSRH20 3GTRH20 3GURH20 3GWRH20 3GYRH20 3GZRH20 3HARH20 3HBRH20 3HDRH20 3HERH20 3HFRH20 3HGRH20 3HHRH20 3HJRH20 3HLRH20 3HNRH20 3HPRH20 3HQRH20 3HRRH20 3HSRH20 3HTRH20 3HURH20 3HWRH20 3HXRH20 3HYRH20 3HZRH20 3JARH20 3JBRH20 3JDRH20 3JERH20 3JFRH20 3JGRH20 3JHRH20 3JJRH20 3JLRH20 3JNRH20 3JPRH20 3JQRH20 3JRRH20 3JSRH20 3JTRH20 3JURH20 3JWRH20 3JXRH20 3JYRH20 3JZRH20 3LARH20 3LBRH20 3LDRH20 3LERH20 3LFRH20 3LGRH20 3LHRH20 3LJRH20 3LLRH20 3LNRH20 3LPRH20 3LQRH20 3LRRH20 3LSRH20 3LURH20 3LWRH20 3LXRH20 3LYRH20 3LZRH20 3NARH20 3NBRH20 3NDRH20 3NERH20 3NFRH20 3NGRH20 3NHRH20 3NJRH20 3NLRH20 3NNRH20 3NPRH20 3NQRH20 3NRRH20 3NSRH20 3NTRH20 3NURH20 3NWRH20 3NXRH20 3NYRH20 3NZRH20 3PARH20 3PBRH20 3PDRH20 3PERH20 3PFRH20 3PGRH20 3PHRH20 3PJRH20 3PNRH20 3PPRH20 3PQRH20 3PRRH20 3PTRH20 3PURH20 3PWRH20 3PXRH20 3PYRH20 3PZRH20 3QARH20 3QBRH20 3QDRH20 3QERH20 3QFRH20 3QGRH20 3QHRH20 3QJRH20 3QNRH20 3QPRH20 3QQRH20 3QRRH20 3QSRH20 3QTRH20 3QWRH20 3QXRH20 3QYRH20 3QZRH20 3RARH20 3RBRH20 3RDRH20 3RERH20 3RFRH20 3RHRH20 3RJRH20 3WNRH20 3YR

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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