IP4 1 postcode sector in the IP4 district

IP4 1 is a sector of the IP4 district: every postcode that starts IP4 1. It has 142 postcodes in use, 5 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 IP4 1 sector, by flood risk

Map of every postcode in the IP4 1 sector, by flood risk Of the 142 postcodes in the IP4 1 sector that ONS places, 3 have a home or business at high risk, 32 are at very low risk only and 107 are not on the Environment Agency's at-risk list. Places named: Ipswich. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. IP4 1AD: not on the flood risk listIP4 1AE: not on the flood risk listIP4 1AG: not on the flood risk listIP4 1AP: not on the flood risk listIP4 1AR: not on the flood risk listIP4 1AU: not on the flood risk listIP4 1AY: not on the flood risk listIP4 1BA: not on the flood risk listIP4 1BB: not on the flood risk listIP4 1BD: not on the flood risk listIP4 1BE: not on the flood risk listIP4 1BJ: not on the flood risk listIP4 1BP: not on the flood risk listIP4 1BS: not on the flood risk listIP4 1BU: not on the flood risk listIP4 1BW: not on the flood risk listIP4 1BX: not on the flood risk listIP4 1DQ: not on the flood risk listIP4 1DR: not on the flood risk listIP4 1DS: not on the flood risk listIP4 1DU: not on the flood risk listIP4 1DX: not on the flood risk listIP4 1EB: not on the flood risk listIP4 1ED: not on the flood risk listIP4 1EE: not on the flood risk listIP4 1EG: not on the flood risk listIP4 1EJ: not on the flood risk listIP4 1EN: not on the flood risk listIP4 1ER: not on the flood risk listIP4 1EW: not on the flood risk listIP4 1GF: not on the flood risk listIP4 1GY: not on the flood risk listIP4 1HA: not on the flood risk listIP4 1HB: not on the flood risk listIP4 1HD: not on the flood risk listIP4 1HE: not on the flood risk listIP4 1HH: not on the flood risk listIP4 1HJ: not on the flood risk listIP4 1HN: not on the flood risk listIP4 1HP: not on the flood risk listIP4 1HQ: not on the flood risk listIP4 1HR: not on the flood risk listIP4 1HS: not on the flood risk listIP4 1HT: not on the flood risk listIP4 1HU: not on the flood risk listIP4 1HW: not on the flood risk listIP4 1HY: not on the flood risk listIP4 1JA: not on the flood risk listIP4 1JB: not on the flood risk listIP4 1JD: not on the flood risk listIP4 1JE: not on the flood risk listIP4 1JF: not on the flood risk listIP4 1JG: not on the flood risk listIP4 1JH: not on the flood risk listIP4 1JL: not on the flood risk listIP4 1JN: not on the flood risk listIP4 1JP: not on the flood risk listIP4 1JR: not on the flood risk listIP4 1JS: not on the flood risk listIP4 1JU: not on the flood risk listIP4 1JW: not on the flood risk listIP4 1JX: not on the flood risk listIP4 1JY: not on the flood risk listIP4 1LP: not on the flood risk listIP4 1LQ: not on the flood risk listIP4 1LR: not on the flood risk listIP4 1LS: not on the flood risk listIP4 1LT: not on the flood risk listIP4 1LW: not on the flood risk listIP4 1NA: not on the flood risk listIP4 1NB: not on the flood risk listIP4 1ND: not on the flood risk listIP4 1NE: not on the flood risk listIP4 1NF: not on the flood risk listIP4 1NG: not on the flood risk listIP4 1NL: not on the flood risk listIP4 1NN: not on the flood risk listIP4 1NP: not on the flood risk listIP4 1NR: not on the flood risk listIP4 1NS: not on the flood risk listIP4 1NT: not on the flood risk listIP4 1NW: not on the flood risk listIP4 1NX: not on the flood risk listIP4 1NY: not on the flood risk listIP4 1NZ: not on the flood risk listIP4 1PA: not on the flood risk listIP4 1PB: not on the flood risk listIP4 1PD: not on the flood risk listIP4 1PE: not on the flood risk listIP4 1PG: not on the flood risk listIP4 1PH: not on the flood risk listIP4 1PJ: not on the flood risk listIP4 1PL: not on the flood risk listIP4 1PN: not on the flood risk listIP4 1PP: not on the flood risk listIP4 1PR: not on the flood risk listIP4 1PS: not on the flood risk listIP4 1PT: not on the flood risk listIP4 1PU: not on the flood risk listIP4 1QB: not on the flood risk listIP4 1QD: not on the flood risk listIP4 1QE: not on the flood risk listIP4 1QF: not on the flood risk listIP4 1RA: not on the flood risk listIP4 1AL: very low flood risk onlyIP4 1AQ: very low flood risk onlyIP4 1AS: very low flood risk onlyIP4 1BF: very low flood risk onlyIP4 1BN: very low flood risk onlyIP4 1BQ: very low flood risk onlyIP4 1BY: very low flood risk onlyIP4 1BZ: very low flood risk onlyIP4 1DJ: very low flood risk onlyIP4 1DL: very low flood risk onlyIP4 1DT: very low flood risk onlyIP4 1DW: very low flood risk onlyIP4 1DY: very low flood risk onlyIP4 1FA: very low flood risk onlyIP4 1FF: very low flood risk onlyIP4 1FG: very low flood risk onlyIP4 1FH: very low flood risk onlyIP4 1FP: very low flood risk onlyIP4 1FT: very low flood risk onlyIP4 1FU: very low flood risk onlyIP4 1FW: very low flood risk onlyIP4 1FX: very low flood risk onlyIP4 1FZ: very low flood risk onlyIP4 1GA: very low flood risk onlyIP4 1GB: very low flood risk onlyIP4 1JQ: very low flood risk onlyIP4 1JZ: very low flood risk onlyIP4 1LB: very low flood risk onlyIP4 1LE: very low flood risk onlyIP4 1LN: very low flood risk onlyIP4 1QH: very low flood risk onlyIP4 1AX: high flood riskIP4 1LG: high flood riskIP4 1QJ: high flood risk Ipswich Map of every postcode in the IP4 1 sector, by flood risk Of the 142 postcodes in the IP4 1 sector that ONS places, 3 have a home or business at high risk, 32 are at very low risk only and 107 are not on the Environment Agency's at-risk list. Places named: Ipswich. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Ipswich
  • A home or business at high risk: 3
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 32
  • Not on the at-risk list: 107

Of the 142 postcodes in the IP4 1 sector that ONS places, 3 have a home or business at high risk, 32 are at very low risk only and 107 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

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

IP4 1QJ2 at high riskIP4 1AX1 at high riskIP4 1LG1 at high risk

What do homes sell for in IP4 1?

Homes in IP4 1 sold for a typical £227,500 in the 12 months to August 2026, across 35 sales, up 4.5% on the 12 months before, HM Land Registry's figures show.

£227,500 typical price, the 12 months to August 2026
£217,750 12 months to August 2025
▲ up 4.5% on the 12 months before
  • Detached 1 sale, too few to price
  • Semi-detached £230,000 11 sales
  • Terraced £230,000 15 sales
  • Flat or maisonette £143,750 8 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 IP4 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 IP4 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.

IP4 1ADIP4 1AEIP4 1AGIP4 1ALIP4 1APIP4 1AQIP4 1ARIP4 1ASIP4 1AUIP4 1AXIP4 1AYIP4 1BAIP4 1BBIP4 1BDIP4 1BEIP4 1BFIP4 1BJIP4 1BNIP4 1BPIP4 1BQIP4 1BSIP4 1BUIP4 1BWIP4 1BXIP4 1BYIP4 1BZIP4 1DJIP4 1DLIP4 1DQIP4 1DRIP4 1DSIP4 1DTIP4 1DUIP4 1DWIP4 1DXIP4 1DYIP4 1EBIP4 1EDIP4 1EEIP4 1EFIP4 1EGIP4 1EJIP4 1ENIP4 1ERIP4 1EWIP4 1FAIP4 1FFIP4 1FGIP4 1FHIP4 1FLIP4 1FPIP4 1FTIP4 1FUIP4 1FWIP4 1FXIP4 1FYIP4 1FZIP4 1GAIP4 1GBIP4 1GFIP4 1GYIP4 1HAIP4 1HBIP4 1HDIP4 1HEIP4 1HHIP4 1HJIP4 1HNIP4 1HPIP4 1HQIP4 1HRIP4 1HSIP4 1HTIP4 1HUIP4 1HWIP4 1HYIP4 1JAIP4 1JBIP4 1JDIP4 1JEIP4 1JFIP4 1JGIP4 1JHIP4 1JLIP4 1JNIP4 1JPIP4 1JQIP4 1JRIP4 1JSIP4 1JUIP4 1JWIP4 1JXIP4 1JYIP4 1JZIP4 1LBIP4 1LEIP4 1LGIP4 1LNIP4 1LPIP4 1LQIP4 1LRIP4 1LSIP4 1LTIP4 1LWIP4 1NAIP4 1NBIP4 1NDIP4 1NEIP4 1NFIP4 1NGIP4 1NLIP4 1NNIP4 1NPIP4 1NRIP4 1NSIP4 1NTIP4 1NWIP4 1NXIP4 1NYIP4 1NZIP4 1PAIP4 1PBIP4 1PDIP4 1PEIP4 1PGIP4 1PHIP4 1PJIP4 1PLIP4 1PNIP4 1PPIP4 1PRIP4 1PSIP4 1PTIP4 1PUIP4 1QBIP4 1QDIP4 1QEIP4 1QFIP4 1QHIP4 1QJIP4 1RAIP4 1WB

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.