IP16 4 postcode sector in the IP16 district

IP16 4 is a sector of the IP16 district: every postcode that starts IP16 4. It has 324 postcodes in use, 6 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 IP16 4 sector, by flood risk

Map of every postcode in the IP16 4 sector, by flood risk Of the 324 postcodes in the IP16 4 sector that ONS places, 4 have a home or business at high risk, 6 are at medium risk at worst, 5 are at low risk at worst, 20 are at very low risk only and 289 are not on the Environment Agency's at-risk list. Places named: Leiston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1094 IP16 4AA: not on the flood risk listIP16 4AB: not on the flood risk listIP16 4AD: not on the flood risk listIP16 4AG: not on the flood risk listIP16 4AH: not on the flood risk listIP16 4AJ: not on the flood risk listIP16 4AL: not on the flood risk listIP16 4AN: not on the flood risk listIP16 4AP: not on the flood risk listIP16 4AQ: not on the flood risk listIP16 4AR: not on the flood risk listIP16 4AS: not on the flood risk listIP16 4AT: not on the flood risk listIP16 4AW: not on the flood risk listIP16 4AX: not on the flood risk listIP16 4AY: not on the flood risk listIP16 4AZ: not on the flood risk listIP16 4BA: not on the flood risk listIP16 4BB: not on the flood risk listIP16 4BD: not on the flood risk listIP16 4BE: not on the flood risk listIP16 4BF: not on the flood risk listIP16 4BG: not on the flood risk listIP16 4BH: not on the flood risk listIP16 4BJ: not on the flood risk listIP16 4BL: not on the flood risk listIP16 4BN: not on the flood risk listIP16 4BQ: not on the flood risk listIP16 4BS: not on the flood risk listIP16 4BT: not on the flood risk listIP16 4BU: not on the flood risk listIP16 4BW: not on the flood risk listIP16 4BX: not on the flood risk listIP16 4BY: not on the flood risk listIP16 4BZ: not on the flood risk listIP16 4DA: not on the flood risk listIP16 4DB: not on the flood risk listIP16 4DD: not on the flood risk listIP16 4DE: not on the flood risk listIP16 4DF: not on the flood risk listIP16 4DG: not on the flood risk listIP16 4DH: not on the flood risk listIP16 4DJ: not on the flood risk listIP16 4DP: not on the flood risk listIP16 4DQ: not on the flood risk listIP16 4DR: not on the flood risk listIP16 4DS: not on the flood risk listIP16 4DT: not on the flood risk listIP16 4DU: not on the flood risk listIP16 4DW: not on the flood risk listIP16 4DX: not on the flood risk listIP16 4DY: not on the flood risk listIP16 4DZ: not on the flood risk listIP16 4EA: not on the flood risk listIP16 4EB: not on the flood risk listIP16 4ED: not on the flood risk listIP16 4EE: not on the flood risk listIP16 4EF: not on the flood risk listIP16 4EG: not on the flood risk listIP16 4EH: not on the flood risk listIP16 4EJ: not on the flood risk listIP16 4EL: not on the flood risk listIP16 4EN: not on the flood risk listIP16 4EQ: not on the flood risk listIP16 4ER: not on the flood risk listIP16 4ES: not on the flood risk listIP16 4EU: not on the flood risk listIP16 4EX: not on the flood risk listIP16 4EY: not on the flood risk listIP16 4EZ: not on the flood risk listIP16 4FB: not on the flood risk listIP16 4FD: not on the flood risk listIP16 4FE: not on the flood risk listIP16 4FF: not on the flood risk listIP16 4FG: not on the flood risk listIP16 4FH: not on the flood risk listIP16 4FJ: not on the flood risk listIP16 4FN: not on the flood risk listIP16 4FP: not on the flood risk listIP16 4FQ: not on the flood risk listIP16 4FR: not on the flood risk listIP16 4FS: not on the flood risk listIP16 4FY: not on the flood risk listIP16 4FZ: not on the flood risk listIP16 4GA: not on the flood risk listIP16 4GB: not on the flood risk listIP16 4GD: not on the flood risk listIP16 4GG: not on the flood risk listIP16 4GH: not on the flood risk listIP16 4GL: not on the flood risk listIP16 4GU: not on the flood risk listIP16 4GW: not on the flood risk listIP16 4GX: not on the flood risk listIP16 4GY: not on the flood risk listIP16 4GZ: not on the flood risk listIP16 4HA: not on the flood risk listIP16 4HB: not on the flood risk listIP16 4HD: not on the flood risk listIP16 4HE: not on the flood risk listIP16 4HF: not on the flood risk listIP16 4HG: not on the flood risk listIP16 4HH: not on the flood risk listIP16 4HJ: not on the flood risk listIP16 4HN: not on the flood risk listIP16 4HP: not on the flood risk listIP16 4HQ: not on the flood risk listIP16 4HR: not on the flood risk listIP16 4HS: not on the flood risk listIP16 4HT: not on the flood risk listIP16 4HU: not on the flood risk listIP16 4HW: not on the flood risk listIP16 4HX: not on the flood risk listIP16 4HY: not on the flood risk listIP16 4HZ: not on the flood risk listIP16 4JA: not on the flood risk listIP16 4JB: not on the flood risk listIP16 4JD: not on the flood risk listIP16 4JE: not on the flood risk listIP16 4JF: not on the flood risk listIP16 4JG: not on the flood risk listIP16 4JH: not on the flood risk listIP16 4JJ: not on the flood risk listIP16 4JL: not on the flood risk listIP16 4JN: not on the flood risk listIP16 4JP: not on the flood risk listIP16 4JQ: not on the flood risk listIP16 4JR: not on the flood risk listIP16 4JT: not on the flood risk listIP16 4JU: not on the flood risk listIP16 4JW: not on the flood risk listIP16 4JX: not on the flood risk listIP16 4JY: not on the flood risk listIP16 4JZ: not on the flood risk listIP16 4LA: not on the flood risk listIP16 4LB: not on the flood risk listIP16 4LD: not on the flood risk listIP16 4LE: not on the flood risk listIP16 4LF: not on the flood risk listIP16 4LG: not on the flood risk listIP16 4LH: not on the flood risk listIP16 4LJ: not on the flood risk listIP16 4LL: not on the flood risk listIP16 4LN: not on the flood risk listIP16 4LP: not on the flood risk listIP16 4LQ: not on the flood risk listIP16 4LR: not on the flood risk listIP16 4LS: not on the flood risk listIP16 4LT: not on the flood risk listIP16 4LU: not on the flood risk listIP16 4LW: not on the flood risk listIP16 4LX: not on the flood risk listIP16 4LY: not on the flood risk listIP16 4LZ: not on the flood risk listIP16 4NA: not on the flood risk listIP16 4NB: not on the flood risk listIP16 4NE: not on the flood risk listIP16 4NF: not on the flood risk listIP16 4NG: not on the flood risk listIP16 4NH: not on the flood risk listIP16 4NQ: not on the flood risk listIP16 4NS: not on the flood risk listIP16 4NU: not on the flood risk listIP16 4NX: not on the flood risk listIP16 4PE: not on the flood risk listIP16 4PF: not on the flood risk listIP16 4PG: not on the flood risk listIP16 4PH: not on the flood risk listIP16 4PJ: not on the flood risk listIP16 4PL: not on the flood risk listIP16 4PN: not on the flood risk listIP16 4PP: not on the flood risk listIP16 4PQ: not on the flood risk listIP16 4PR: not on the flood risk listIP16 4PS: not on the flood risk listIP16 4PT: not on the flood risk listIP16 4PU: not on the flood risk listIP16 4PX: not on the flood risk listIP16 4PZ: not on the flood risk listIP16 4QA: not on the flood risk listIP16 4QB: not on the flood risk listIP16 4QD: not on the flood risk listIP16 4QE: not on the flood risk listIP16 4QG: not on the flood risk listIP16 4QH: not on the flood risk listIP16 4QL: not on the flood risk listIP16 4QN: not on the flood risk listIP16 4QP: not on the flood risk listIP16 4QQ: not on the flood risk listIP16 4QT: not on the flood risk listIP16 4QU: not on the flood risk listIP16 4QW: not on the flood risk listIP16 4QX: not on the flood risk listIP16 4QY: not on the flood risk listIP16 4QZ: not on the flood risk listIP16 4RA: not on the flood risk listIP16 4RB: not on the flood risk listIP16 4RD: not on the flood risk listIP16 4RE: not on the flood risk listIP16 4RF: not on the flood risk listIP16 4RG: not on the flood risk listIP16 4RH: not on the flood risk listIP16 4RJ: not on the flood risk listIP16 4RL: not on the flood risk listIP16 4RN: not on the flood risk listIP16 4RQ: not on the flood risk listIP16 4RR: not on the flood risk listIP16 4RS: not on the flood risk listIP16 4RT: not on the flood risk listIP16 4RU: not on the flood risk listIP16 4RX: not on the flood risk listIP16 4RZ: not on the flood risk listIP16 4SA: not on the flood risk listIP16 4SB: not on the flood risk listIP16 4SJ: not on the flood risk listIP16 4SR: not on the flood risk listIP16 4ST: not on the flood risk listIP16 4SW: not on the flood risk listIP16 4SX: not on the flood risk listIP16 4TA: not on the flood risk listIP16 4TB: not on the flood risk listIP16 4TD: not on the flood risk listIP16 4TE: not on the flood risk listIP16 4TF: not on the flood risk listIP16 4TH: not on the flood risk listIP16 4TJ: not on the flood risk listIP16 4TL: not on the flood risk listIP16 4TN: not on the flood risk listIP16 4TP: not on the flood risk listIP16 4TQ: not on the flood risk listIP16 4TR: not on the flood risk listIP16 4TS: not on the flood risk listIP16 4TT: not on the flood risk listIP16 4TU: not on the flood risk listIP16 4TW: not on the flood risk listIP16 4TX: not on the flood risk listIP16 4TY: not on the flood risk listIP16 4TZ: not on the flood risk listIP16 4UB: not on the flood risk listIP16 4UD: not on the flood risk listIP16 4UE: not on the flood risk listIP16 4UG: not on the flood risk listIP16 4UL: not on the flood risk listIP16 4UN: not on the flood risk listIP16 4UQ: not on the flood risk listIP16 4US: not on the flood risk listIP16 4UT: not on the flood risk listIP16 4UU: not on the flood risk listIP16 4UW: not on the flood risk listIP16 4UX: not on the flood risk listIP16 4UY: not on the flood risk listIP16 4UZ: not on the flood risk listIP16 4WA: not on the flood risk listIP16 4WB: not on the flood risk listIP16 4WE: not on the flood risk listIP16 4WF: not on the flood risk listIP16 4WH: not on the flood risk listIP16 4WJ: not on the flood risk listIP16 4WL: not on the flood risk listIP16 4WN: not on the flood risk listIP16 4WQ: not on the flood risk listIP16 4WR: not on the flood risk listIP16 4WS: not on the flood risk listIP16 4WW: not on the flood risk listIP16 4WX: not on the flood risk listIP16 4WZ: not on the flood risk listIP16 4XA: not on the flood risk listIP16 4XB: not on the flood risk listIP16 4XD: not on the flood risk listIP16 4XE: not on the flood risk listIP16 4XF: not on the flood risk listIP16 4ND: very low flood risk onlyIP16 4NL: very low flood risk onlyIP16 4NN: very low flood risk onlyIP16 4NP: very low flood risk onlyIP16 4NT: very low flood risk onlyIP16 4QJ: very low flood risk onlyIP16 4QR: very low flood risk onlyIP16 4QS: very low flood risk onlyIP16 4RP: very low flood risk onlyIP16 4RW: very low flood risk onlyIP16 4SD: very low flood risk onlyIP16 4SE: very low flood risk onlyIP16 4SF: very low flood risk onlyIP16 4SH: very low flood risk onlyIP16 4SL: very low flood risk onlyIP16 4SN: very low flood risk onlyIP16 4SP: very low flood risk onlyIP16 4SQ: very low flood risk onlyIP16 4UH: very low flood risk onlyIP16 4UP: very low flood risk onlyIP16 4NR: low flood risk at worstIP16 4PD: low flood risk at worstIP16 4QF: low flood risk at worstIP16 4SG: low flood risk at worstIP16 4NW: medium flood risk at worstIP16 4NY: medium flood risk at worstIP16 4NZ: medium flood risk at worstIP16 4PB: medium flood risk at worstIP16 4RY: medium flood risk at worstIP16 4UJ: medium flood risk at worstIP16 4NJ: high flood riskIP16 4TG: high flood riskIP16 4UR: high flood riskIP16 4WG: high flood risk Leiston Map of every postcode in the IP16 4 sector, by flood risk Of the 324 postcodes in the IP16 4 sector that ONS places, 4 have a home or business at high risk, 6 are at medium risk at worst, 5 are at low risk at worst, 20 are at very low risk only and 289 are not on the Environment Agency's at-risk list. Places named: Leiston. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1094 Leiston
  • A home or business at high risk: 4
  • At medium risk at worst: 6
  • At low risk at worst: 5
  • At very low risk only: 20
  • Not on the at-risk list: 289

Of the 324 postcodes in the IP16 4 sector that ONS places, 4 have a home or business at high risk, 6 are at medium risk at worst, 5 are at low risk at worst, 20 are at very low risk only and 289 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.

IP16 4TG1 at high riskIP16 4NJ1 at high riskIP16 4UR1 at high riskIP16 4WG1 at high risk

What do homes sell for in IP16 4?

Homes in IP16 4 sold for a typical £260,000 in the 12 months to August 2026, across 60 sales, up 13% on the 12 months before, HM Land Registry's figures show.

£260,000 typical price, the 12 months to August 2026
£230,000 12 months to August 2025
▲ up 13% on the 12 months before
  • Detached £390,000 19 sales
  • Semi-detached £250,000 23 sales
  • Terraced £192,500 14 sales
  • Flat or maisonette 4 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 IP16 4. 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 IP16 4

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.

IP16 4AAIP16 4ABIP16 4ADIP16 4AGIP16 4AHIP16 4AJIP16 4ALIP16 4ANIP16 4APIP16 4AQIP16 4ARIP16 4ASIP16 4ATIP16 4AUIP16 4AWIP16 4AXIP16 4AYIP16 4AZIP16 4BAIP16 4BBIP16 4BDIP16 4BEIP16 4BFIP16 4BGIP16 4BHIP16 4BJIP16 4BLIP16 4BNIP16 4BQIP16 4BSIP16 4BTIP16 4BUIP16 4BWIP16 4BXIP16 4BYIP16 4BZIP16 4DAIP16 4DBIP16 4DDIP16 4DEIP16 4DFIP16 4DGIP16 4DHIP16 4DJIP16 4DNIP16 4DPIP16 4DQIP16 4DRIP16 4DSIP16 4DTIP16 4DUIP16 4DWIP16 4DXIP16 4DYIP16 4DZIP16 4EAIP16 4EBIP16 4EDIP16 4EEIP16 4EFIP16 4EGIP16 4EHIP16 4EJIP16 4ELIP16 4ENIP16 4EPIP16 4EQIP16 4ERIP16 4ESIP16 4ETIP16 4EUIP16 4EWIP16 4EXIP16 4EYIP16 4EZIP16 4FAIP16 4FBIP16 4FDIP16 4FEIP16 4FFIP16 4FGIP16 4FHIP16 4FJIP16 4FLIP16 4FNIP16 4FPIP16 4FQIP16 4FRIP16 4FSIP16 4FTIP16 4FUIP16 4FXIP16 4FYIP16 4FZIP16 4GAIP16 4GBIP16 4GDIP16 4GGIP16 4GHIP16 4GLIP16 4GUIP16 4GWIP16 4GXIP16 4GYIP16 4GZIP16 4HAIP16 4HBIP16 4HDIP16 4HEIP16 4HFIP16 4HGIP16 4HHIP16 4HJIP16 4HLIP16 4HNIP16 4HPIP16 4HQIP16 4HRIP16 4HSIP16 4HTIP16 4HUIP16 4HWIP16 4HXIP16 4HYIP16 4HZIP16 4JAIP16 4JBIP16 4JDIP16 4JEIP16 4JFIP16 4JGIP16 4JHIP16 4JJIP16 4JLIP16 4JNIP16 4JPIP16 4JQIP16 4JRIP16 4JTIP16 4JUIP16 4JWIP16 4JXIP16 4JYIP16 4JZIP16 4LAIP16 4LBIP16 4LDIP16 4LEIP16 4LFIP16 4LGIP16 4LHIP16 4LJIP16 4LLIP16 4LNIP16 4LPIP16 4LQIP16 4LRIP16 4LSIP16 4LTIP16 4LUIP16 4LWIP16 4LXIP16 4LYIP16 4LZIP16 4NAIP16 4NBIP16 4NDIP16 4NEIP16 4NFIP16 4NGIP16 4NHIP16 4NJIP16 4NLIP16 4NNIP16 4NPIP16 4NQIP16 4NRIP16 4NSIP16 4NTIP16 4NUIP16 4NWIP16 4NXIP16 4NYIP16 4NZIP16 4PAIP16 4PBIP16 4PDIP16 4PEIP16 4PFIP16 4PGIP16 4PHIP16 4PJIP16 4PLIP16 4PNIP16 4PPIP16 4PQIP16 4PRIP16 4PSIP16 4PTIP16 4PUIP16 4PWIP16 4PXIP16 4PYIP16 4PZIP16 4QAIP16 4QBIP16 4QDIP16 4QEIP16 4QFIP16 4QGIP16 4QHIP16 4QJIP16 4QLIP16 4QNIP16 4QPIP16 4QQIP16 4QRIP16 4QSIP16 4QTIP16 4QUIP16 4QWIP16 4QXIP16 4QYIP16 4QZIP16 4RAIP16 4RBIP16 4RDIP16 4REIP16 4RFIP16 4RGIP16 4RHIP16 4RJIP16 4RLIP16 4RNIP16 4RPIP16 4RQIP16 4RRIP16 4RSIP16 4RTIP16 4RUIP16 4RWIP16 4RXIP16 4RYIP16 4RZIP16 4SAIP16 4SBIP16 4SDIP16 4SEIP16 4SFIP16 4SGIP16 4SHIP16 4SJIP16 4SLIP16 4SNIP16 4SPIP16 4SQIP16 4SRIP16 4STIP16 4SWIP16 4SXIP16 4TAIP16 4TBIP16 4TDIP16 4TEIP16 4TFIP16 4TGIP16 4THIP16 4TJIP16 4TLIP16 4TNIP16 4TPIP16 4TQIP16 4TRIP16 4TSIP16 4TTIP16 4TUIP16 4TWIP16 4TXIP16 4TYIP16 4TZIP16 4UAIP16 4UBIP16 4UDIP16 4UEIP16 4UFIP16 4UGIP16 4UHIP16 4UJIP16 4ULIP16 4UNIP16 4UPIP16 4UQIP16 4URIP16 4USIP16 4UTIP16 4UUIP16 4UWIP16 4UXIP16 4UYIP16 4UZIP16 4WAIP16 4WBIP16 4WDIP16 4WEIP16 4WFIP16 4WGIP16 4WHIP16 4WJIP16 4WLIP16 4WNIP16 4WPIP16 4WQIP16 4WRIP16 4WSIP16 4WTIP16 4WWIP16 4WXIP16 4WYIP16 4WZIP16 4XAIP16 4XBIP16 4XDIP16 4XEIP16 4XF

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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