IP20 9 postcode sector in the IP20 district

IP20 9 is a sector of the IP20 district: every postcode that starts IP20 9. It has 198 postcodes in use, 2 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 IP20 9 sector, by flood risk

Map of every postcode in the IP20 9 sector, by flood risk Of the 198 postcodes in the IP20 9 sector that ONS places, 13 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 182 are not on the Environment Agency's at-risk list. Places named: Harleston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. IP20 9AA: not on the flood risk listIP20 9AB: not on the flood risk listIP20 9AD: not on the flood risk listIP20 9AJ: not on the flood risk listIP20 9AN: not on the flood risk listIP20 9AP: not on the flood risk listIP20 9AR: not on the flood risk listIP20 9AS: not on the flood risk listIP20 9AT: not on the flood risk listIP20 9AW: not on the flood risk listIP20 9AX: not on the flood risk listIP20 9AY: not on the flood risk listIP20 9BA: not on the flood risk listIP20 9BB: not on the flood risk listIP20 9BD: not on the flood risk listIP20 9BG: not on the flood risk listIP20 9BH: not on the flood risk listIP20 9BJ: not on the flood risk listIP20 9BN: not on the flood risk listIP20 9BP: not on the flood risk listIP20 9BQ: not on the flood risk listIP20 9BS: not on the flood risk listIP20 9BT: not on the flood risk listIP20 9BU: not on the flood risk listIP20 9BW: not on the flood risk listIP20 9BX: not on the flood risk listIP20 9BY: not on the flood risk listIP20 9BZ: not on the flood risk listIP20 9DA: not on the flood risk listIP20 9DB: not on the flood risk listIP20 9DD: not on the flood risk listIP20 9DE: not on the flood risk listIP20 9DF: not on the flood risk listIP20 9DG: not on the flood risk listIP20 9DH: not on the flood risk listIP20 9DJ: not on the flood risk listIP20 9DL: not on the flood risk listIP20 9DN: not on the flood risk listIP20 9DQ: not on the flood risk listIP20 9DR: not on the flood risk listIP20 9DS: not on the flood risk listIP20 9DT: not on the flood risk listIP20 9DU: not on the flood risk listIP20 9DW: not on the flood risk listIP20 9DX: not on the flood risk listIP20 9DY: not on the flood risk listIP20 9DZ: not on the flood risk listIP20 9EA: not on the flood risk listIP20 9EB: not on the flood risk listIP20 9EE: not on the flood risk listIP20 9EF: not on the flood risk listIP20 9EH: not on the flood risk listIP20 9EL: not on the flood risk listIP20 9EN: not on the flood risk listIP20 9EP: not on the flood risk listIP20 9EQ: not on the flood risk listIP20 9ES: not on the flood risk listIP20 9ET: not on the flood risk listIP20 9EU: not on the flood risk listIP20 9EW: not on the flood risk listIP20 9EX: not on the flood risk listIP20 9EY: not on the flood risk listIP20 9EZ: not on the flood risk listIP20 9FA: not on the flood risk listIP20 9FB: not on the flood risk listIP20 9FD: not on the flood risk listIP20 9FF: not on the flood risk listIP20 9FG: not on the flood risk listIP20 9FH: not on the flood risk listIP20 9FL: not on the flood risk listIP20 9FN: not on the flood risk listIP20 9FP: not on the flood risk listIP20 9FQ: not on the flood risk listIP20 9FT: not on the flood risk listIP20 9FU: not on the flood risk listIP20 9GA: not on the flood risk listIP20 9GB: not on the flood risk listIP20 9GD: not on the flood risk listIP20 9GE: not on the flood risk listIP20 9GN: not on the flood risk listIP20 9GW: not on the flood risk listIP20 9HA: not on the flood risk listIP20 9HB: not on the flood risk listIP20 9HD: not on the flood risk listIP20 9HF: not on the flood risk listIP20 9HG: not on the flood risk listIP20 9HH: not on the flood risk listIP20 9HJ: not on the flood risk listIP20 9HP: not on the flood risk listIP20 9HQ: not on the flood risk listIP20 9HR: not on the flood risk listIP20 9HS: not on the flood risk listIP20 9HT: not on the flood risk listIP20 9HU: not on the flood risk listIP20 9HW: not on the flood risk listIP20 9HX: not on the flood risk listIP20 9HY: not on the flood risk listIP20 9HZ: not on the flood risk listIP20 9JA: not on the flood risk listIP20 9JB: not on the flood risk listIP20 9JG: not on the flood risk listIP20 9JH: not on the flood risk listIP20 9JJ: not on the flood risk listIP20 9JL: not on the flood risk listIP20 9JN: not on the flood risk listIP20 9JP: not on the flood risk listIP20 9JR: not on the flood risk listIP20 9JT: not on the flood risk listIP20 9JU: not on the flood risk listIP20 9JY: not on the flood risk listIP20 9LA: not on the flood risk listIP20 9LF: not on the flood risk listIP20 9LH: not on the flood risk listIP20 9LJ: not on the flood risk listIP20 9LL: not on the flood risk listIP20 9LN: not on the flood risk listIP20 9LP: not on the flood risk listIP20 9LQ: not on the flood risk listIP20 9LR: not on the flood risk listIP20 9LT: not on the flood risk listIP20 9LW: not on the flood risk listIP20 9ND: not on the flood risk listIP20 9NE: not on the flood risk listIP20 9NF: not on the flood risk listIP20 9NH: not on the flood risk listIP20 9NP: not on the flood risk listIP20 9NQ: not on the flood risk listIP20 9NR: not on the flood risk listIP20 9NT: not on the flood risk listIP20 9NW: not on the flood risk listIP20 9NY: not on the flood risk listIP20 9NZ: not on the flood risk listIP20 9PB: not on the flood risk listIP20 9PD: not on the flood risk listIP20 9PE: not on the flood risk listIP20 9PF: not on the flood risk listIP20 9PG: not on the flood risk listIP20 9PH: not on the flood risk listIP20 9PJ: not on the flood risk listIP20 9PL: not on the flood risk listIP20 9PN: not on the flood risk listIP20 9PP: not on the flood risk listIP20 9PQ: not on the flood risk listIP20 9PR: not on the flood risk listIP20 9PS: not on the flood risk listIP20 9PT: not on the flood risk listIP20 9PU: not on the flood risk listIP20 9PW: not on the flood risk listIP20 9PX: not on the flood risk listIP20 9PY: not on the flood risk listIP20 9PZ: not on the flood risk listIP20 9QA: not on the flood risk listIP20 9QB: not on the flood risk listIP20 9QD: not on the flood risk listIP20 9QE: not on the flood risk listIP20 9QG: not on the flood risk listIP20 9QH: not on the flood risk listIP20 9QJ: not on the flood risk listIP20 9QL: not on the flood risk listIP20 9QQ: not on the flood risk listIP20 9QS: not on the flood risk listIP20 9QP: low flood risk at worstIP20 9QU: low flood risk at worstIP20 9HL: medium flood risk at worstIP20 9HE: high flood riskIP20 9LB: high flood riskIP20 9LD: high flood riskIP20 9LE: high flood riskIP20 9LG: high flood riskIP20 9NJ: high flood riskIP20 9NL: high flood riskIP20 9NN: high flood riskIP20 9NU: high flood riskIP20 9QN: high flood riskIP20 9QR: high flood riskIP20 9QT: high flood riskIP20 9QW: high flood risk Harleston Map of every postcode in the IP20 9 sector, by flood risk Of the 198 postcodes in the IP20 9 sector that ONS places, 13 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 182 are not on the Environment Agency's at-risk list. Places named: Harleston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Harleston
  • A home or business at high risk: 13
  • At medium risk at worst: 1
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 182

Of the 198 postcodes in the IP20 9 sector that ONS places, 13 have a home or business at high risk, 1 are at medium risk at worst, 2 are at low risk at worst and 182 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

13 postcodes here have a home or business at high risk. 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.

IP20 9QW9 at high riskIP20 9QN6 at high riskIP20 9LE4 at high riskIP20 9LB3 at high riskIP20 9NL3 at high riskIP20 9HE1 at high riskIP20 9LG1 at high riskIP20 9LD1 at high riskIP20 9NJ1 at high riskIP20 9NN1 at high riskIP20 9NU1 at high riskIP20 9QR1 at high risk

What do homes sell for in IP20 9?

Homes in IP20 9 sold for a typical £260,000 in the 12 months to August 2026, across 85 sales, no change on the 12 months before, HM Land Registry's figures show.

£260,000 typical price, the 12 months to August 2026
£260,000 12 months to August 2025
■ no change on the 12 months before
  • Detached £294,450 33 sales
  • Semi-detached £275,000 27 sales
  • Terraced £190,000 16 sales
  • Flat or maisonette £135,000 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 IP20 9. 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 IP20 9

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.

IP20 9AAIP20 9ABIP20 9ADIP20 9AHIP20 9AJIP20 9ALIP20 9ANIP20 9APIP20 9ARIP20 9ASIP20 9ATIP20 9AUIP20 9AWIP20 9AXIP20 9AYIP20 9AZIP20 9BAIP20 9BBIP20 9BDIP20 9BEIP20 9BGIP20 9BHIP20 9BJIP20 9BLIP20 9BNIP20 9BPIP20 9BQIP20 9BSIP20 9BTIP20 9BUIP20 9BWIP20 9BXIP20 9BYIP20 9BZIP20 9DAIP20 9DBIP20 9DDIP20 9DEIP20 9DFIP20 9DGIP20 9DHIP20 9DJIP20 9DLIP20 9DNIP20 9DQIP20 9DRIP20 9DSIP20 9DTIP20 9DUIP20 9DWIP20 9DXIP20 9DYIP20 9DZIP20 9EAIP20 9EBIP20 9EDIP20 9EEIP20 9EFIP20 9EGIP20 9EHIP20 9EJIP20 9ELIP20 9ENIP20 9EPIP20 9EQIP20 9ERIP20 9ESIP20 9ETIP20 9EUIP20 9EWIP20 9EXIP20 9EYIP20 9EZIP20 9FAIP20 9FBIP20 9FDIP20 9FEIP20 9FFIP20 9FGIP20 9FHIP20 9FJIP20 9FLIP20 9FNIP20 9FPIP20 9FQIP20 9FRIP20 9FSIP20 9FTIP20 9FUIP20 9GAIP20 9GBIP20 9GDIP20 9GEIP20 9GFIP20 9GNIP20 9GWIP20 9HAIP20 9HBIP20 9HDIP20 9HEIP20 9HFIP20 9HGIP20 9HHIP20 9HJIP20 9HLIP20 9HPIP20 9HQIP20 9HRIP20 9HSIP20 9HTIP20 9HUIP20 9HWIP20 9HXIP20 9HYIP20 9HZIP20 9JAIP20 9JBIP20 9JEIP20 9JGIP20 9JHIP20 9JJIP20 9JLIP20 9JNIP20 9JPIP20 9JRIP20 9JTIP20 9JUIP20 9JWIP20 9JYIP20 9LAIP20 9LBIP20 9LDIP20 9LEIP20 9LFIP20 9LGIP20 9LHIP20 9LJIP20 9LLIP20 9LNIP20 9LPIP20 9LQIP20 9LRIP20 9LSIP20 9LTIP20 9LWIP20 9LXIP20 9NDIP20 9NEIP20 9NFIP20 9NGIP20 9NHIP20 9NJIP20 9NLIP20 9NNIP20 9NPIP20 9NQIP20 9NRIP20 9NTIP20 9NUIP20 9NWIP20 9NYIP20 9NZIP20 9PBIP20 9PDIP20 9PEIP20 9PFIP20 9PGIP20 9PHIP20 9PJIP20 9PLIP20 9PNIP20 9PPIP20 9PQIP20 9PRIP20 9PSIP20 9PTIP20 9PUIP20 9PWIP20 9PXIP20 9PYIP20 9PZIP20 9QAIP20 9QBIP20 9QDIP20 9QEIP20 9QGIP20 9QHIP20 9QJIP20 9QLIP20 9QNIP20 9QPIP20 9QQIP20 9QRIP20 9QSIP20 9QTIP20 9QUIP20 9QWIP20 9YY

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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