DN40 3 postcode sector in the DN40 district

DN40 3 is a sector of the DN40 district: every postcode that starts DN40 3. It has 132 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 DN40 3 sector, by flood risk

Map of every postcode in the DN40 3 sector, by flood risk Of the 132 postcodes in the DN40 3 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst, 3 are at very low risk only and 117 are not on the Environment Agency's at-risk list. Places named: Immingham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1077A1173A160 DN40 3AA: not on the flood risk listDN40 3AB: not on the flood risk listDN40 3AD: not on the flood risk listDN40 3AE: not on the flood risk listDN40 3AF: not on the flood risk listDN40 3AG: not on the flood risk listDN40 3AH: not on the flood risk listDN40 3AJ: not on the flood risk listDN40 3AL: not on the flood risk listDN40 3AN: not on the flood risk listDN40 3AP: not on the flood risk listDN40 3AQ: not on the flood risk listDN40 3AS: not on the flood risk listDN40 3AT: not on the flood risk listDN40 3AU: not on the flood risk listDN40 3AW: not on the flood risk listDN40 3AX: not on the flood risk listDN40 3AY: not on the flood risk listDN40 3BA: not on the flood risk listDN40 3BB: not on the flood risk listDN40 3BD: not on the flood risk listDN40 3BG: not on the flood risk listDN40 3BH: not on the flood risk listDN40 3BS: not on the flood risk listDN40 3BT: not on the flood risk listDN40 3BU: not on the flood risk listDN40 3BY: not on the flood risk listDN40 3BZ: not on the flood risk listDN40 3DA: not on the flood risk listDN40 3DB: not on the flood risk listDN40 3DD: not on the flood risk listDN40 3DF: not on the flood risk listDN40 3DG: not on the flood risk listDN40 3DJ: not on the flood risk listDN40 3DR: not on the flood risk listDN40 3DS: not on the flood risk listDN40 3DW: not on the flood risk listDN40 3EE: not on the flood risk listDN40 3EL: not on the flood risk listDN40 3EN: not on the flood risk listDN40 3EP: not on the flood risk listDN40 3ER: not on the flood risk listDN40 3ET: not on the flood risk listDN40 3EU: not on the flood risk listDN40 3EW: not on the flood risk listDN40 3EX: not on the flood risk listDN40 3EY: not on the flood risk listDN40 3EZ: not on the flood risk listDN40 3FB: not on the flood risk listDN40 3HA: not on the flood risk listDN40 3HB: not on the flood risk listDN40 3HD: not on the flood risk listDN40 3HE: not on the flood risk listDN40 3HF: not on the flood risk listDN40 3HG: not on the flood risk listDN40 3HH: not on the flood risk listDN40 3HL: not on the flood risk listDN40 3HN: not on the flood risk listDN40 3HP: not on the flood risk listDN40 3HR: not on the flood risk listDN40 3HS: not on the flood risk listDN40 3HT: not on the flood risk listDN40 3HU: not on the flood risk listDN40 3HW: not on the flood risk listDN40 3HX: not on the flood risk listDN40 3HY: not on the flood risk listDN40 3HZ: not on the flood risk listDN40 3JA: not on the flood risk listDN40 3JB: not on the flood risk listDN40 3JD: not on the flood risk listDN40 3JE: not on the flood risk listDN40 3JF: not on the flood risk listDN40 3JH: not on the flood risk listDN40 3JJ: not on the flood risk listDN40 3JL: not on the flood risk listDN40 3JN: not on the flood risk listDN40 3JQ: not on the flood risk listDN40 3JR: not on the flood risk listDN40 3JU: not on the flood risk listDN40 3JW: not on the flood risk listDN40 3JX: not on the flood risk listDN40 3JY: not on the flood risk listDN40 3JZ: not on the flood risk listDN40 3LA: not on the flood risk listDN40 3LJ: not on the flood risk listDN40 3LW: not on the flood risk listDN40 3NF: not on the flood risk listDN40 3NL: not on the flood risk listDN40 3NP: not on the flood risk listDN40 3NR: not on the flood risk listDN40 3NS: not on the flood risk listDN40 3NT: not on the flood risk listDN40 3NU: not on the flood risk listDN40 3NW: not on the flood risk listDN40 3NX: not on the flood risk listDN40 3PA: not on the flood risk listDN40 3PB: not on the flood risk listDN40 3PD: not on the flood risk listDN40 3PJ: not on the flood risk listDN40 3PL: not on the flood risk listDN40 3PN: not on the flood risk listDN40 3PP: not on the flood risk listDN40 3PR: not on the flood risk listDN40 3PS: not on the flood risk listDN40 3PT: not on the flood risk listDN40 3PU: not on the flood risk listDN40 3PW: not on the flood risk listDN40 3PY: not on the flood risk listDN40 3QA: not on the flood risk listDN40 3QB: not on the flood risk listDN40 3QD: not on the flood risk listDN40 3QE: not on the flood risk listDN40 3QY: not on the flood risk listDN40 3RA: not on the flood risk listDN40 3RD: not on the flood risk listDN40 3DQ: very low flood risk onlyDN40 3DU: very low flood risk onlyDN40 3DX: very low flood risk onlyDN40 3LU: low flood risk at worstDN40 3PZ: low flood risk at worstDN40 3DE: medium flood risk at worstDN40 3DZ: medium flood risk at worstDN40 3EA: medium flood risk at worstDN40 3ED: high flood riskDN40 3JP: high flood riskDN40 3JS: high flood riskDN40 3LX: high flood riskDN40 3LZ: high flood riskDN40 3PX: high flood riskDN40 3QG: high flood risk Immingham Map of every postcode in the DN40 3 sector, by flood risk Of the 132 postcodes in the DN40 3 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst, 3 are at very low risk only and 117 are not on the Environment Agency's at-risk list. Places named: Ferry, Immingham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1077A1173 FerryImmingham
  • A home or business at high risk: 7
  • At medium risk at worst: 3
  • At low risk at worst: 2
  • At very low risk only: 3
  • Not on the at-risk list: 117

Of the 132 postcodes in the DN40 3 sector that ONS places, 7 have a home or business at high risk, 3 are at medium risk at worst, 2 are at low risk at worst, 3 are at very low risk only and 117 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. Names in italics are council wards: we hold no town or village names here.

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.

DN40 3ED18 at high riskDN40 3JP8 at high riskDN40 3QG7 at high riskDN40 3LX5 at high riskDN40 3LZ4 at high riskDN40 3JS4 at high riskDN40 3PX3 at high risk

What do homes sell for in DN40 3?

Homes in DN40 3 sold for a typical £152,500 in the 12 months to August 2026, across 33 sales, down 3.8% on the 12 months before, HM Land Registry's figures show.

£152,500 typical price, the 12 months to August 2026
£158,475 12 months to August 2025
▼ down 3.8% on the 12 months before
  • Detached £220,000 12 sales
  • Semi-detached £136,000 19 sales
  • Terraced 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 DN40 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 DN40 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.

DN40 3AADN40 3ABDN40 3ADDN40 3AEDN40 3AFDN40 3AGDN40 3AHDN40 3AJDN40 3ALDN40 3ANDN40 3APDN40 3AQDN40 3ASDN40 3ATDN40 3AUDN40 3AWDN40 3AXDN40 3AYDN40 3BADN40 3BBDN40 3BDDN40 3BGDN40 3BHDN40 3BSDN40 3BTDN40 3BUDN40 3BYDN40 3BZDN40 3DADN40 3DBDN40 3DDDN40 3DEDN40 3DFDN40 3DGDN40 3DJDN40 3DQDN40 3DRDN40 3DSDN40 3DUDN40 3DWDN40 3DXDN40 3DZDN40 3EADN40 3EDDN40 3EEDN40 3ELDN40 3ENDN40 3EPDN40 3ERDN40 3ETDN40 3EUDN40 3EWDN40 3EXDN40 3EYDN40 3EZDN40 3FBDN40 3HADN40 3HBDN40 3HDDN40 3HEDN40 3HFDN40 3HGDN40 3HHDN40 3HLDN40 3HNDN40 3HPDN40 3HQDN40 3HRDN40 3HSDN40 3HTDN40 3HUDN40 3HWDN40 3HXDN40 3HYDN40 3HZDN40 3JADN40 3JBDN40 3JDDN40 3JEDN40 3JFDN40 3JHDN40 3JJDN40 3JLDN40 3JNDN40 3JPDN40 3JQDN40 3JRDN40 3JSDN40 3JUDN40 3JWDN40 3JXDN40 3JYDN40 3JZDN40 3LADN40 3LBDN40 3LJDN40 3LUDN40 3LWDN40 3LXDN40 3LZDN40 3NFDN40 3NLDN40 3NPDN40 3NRDN40 3NSDN40 3NTDN40 3NUDN40 3NWDN40 3NXDN40 3PADN40 3PBDN40 3PDDN40 3PJDN40 3PLDN40 3PNDN40 3PPDN40 3PRDN40 3PSDN40 3PTDN40 3PUDN40 3PWDN40 3PXDN40 3PYDN40 3PZDN40 3QADN40 3QBDN40 3QDDN40 3QEDN40 3QGDN40 3QYDN40 3RADN40 3RD

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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