DN31 3 postcode sector in the DN31 district

DN31 3 is a sector of the DN31 district: every postcode that starts DN31 3. It has 71 postcodes in use, 10 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 DN31 3 sector, and which are new since 2020

Map of every postcode in the DN31 3 sector, by new since 2020 Of the 71 postcodes in the DN31 3 sector that ONS places, 3 are new since 2020 and 68 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: East Marsh, West Marsh. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A16 DN31 3AA: before 2020DN31 3AE: before 2020DN31 3AF: before 2020DN31 3AG: before 2020DN31 3AH: before 2020DN31 3AL: before 2020DN31 3AN: before 2020DN31 3AR: before 2020DN31 3AT: before 2020DN31 3AX: before 2020DN31 3AY: before 2020DN31 3BE: before 2020DN31 3BH: before 2020DN31 3BL: before 2020DN31 3BP: before 2020DN31 3BT: before 2020DN31 3BU: before 2020DN31 3BY: before 2020DN31 3DA: before 2020DN31 3DH: before 2020DN31 3DS: before 2020DN31 3DT: before 2020DN31 3DU: before 2020DN31 3DX: before 2020DN31 3EF: before 2020DN31 3ER: before 2020DN31 3ET: before 2020DN31 3EW: before 2020DN31 3FS: before 2020DN31 3HB: before 2020DN31 3HF: before 2020DN31 3HG: before 2020DN31 3HH: before 2020DN31 3HL: before 2020DN31 3HW: before 2020DN31 3HY: before 2020DN31 3JD: before 2020DN31 3JH: before 2020DN31 3JP: before 2020DN31 3JS: before 2020DN31 3LA: before 2020DN31 3LB: before 2020DN31 3LG: before 2020DN31 3LL: before 2020DN31 3LQ: before 2020DN31 3LS: before 2020DN31 3LW: before 2020DN31 3NB: before 2020DN31 3NE: before 2020DN31 3PD: before 2020DN31 3PG: before 2020DN31 3PU: before 2020DN31 3QF: before 2020DN31 3QJ: before 2020DN31 3QL: before 2020DN31 3RD: before 2020DN31 3SD: before 2020DN31 3SG: before 2020DN31 3SH: before 2020DN31 3SL: before 2020DN31 3SW: before 2020DN31 3SX: before 2020DN31 3SY: before 2020DN31 3TD: before 2020DN31 3TN: before 2020DN31 3UA: before 2020DN31 3AU: new since 2020DN31 3RP: new since 2020 East MarshWest Marsh Map of every postcode in the DN31 3 sector, by new since 2020 Of the 71 postcodes in the DN31 3 sector that ONS places, 3 are new since 2020 and 68 were in use before 2020. One postcode lies beyond the edge and is listed under the map. Places named: East Marsh, West Marsh. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. East MarshWest Marsh
  • New since 2020: 3
  • In use before 2020: 68

Of the 71 postcodes in the DN31 3 sector that ONS places, 3 are new since 2020 and 68 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 3 newest postcodes

DN31 3ASFebruary 2023DN31 3RPFebruary 2023DN31 3AUAugust 2021

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

DN31 3AS

Postcodes in DN31 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.

DN31 3AADN31 3AEDN31 3AFDN31 3AGDN31 3AHDN31 3ALDN31 3ANDN31 3ARDN31 3ASDN31 3ATDN31 3AUDN31 3AXDN31 3AYDN31 3BEDN31 3BHDN31 3BLDN31 3BPDN31 3BTDN31 3BUDN31 3BYDN31 3DADN31 3DHDN31 3DSDN31 3DTDN31 3DUDN31 3DXDN31 3EFDN31 3ERDN31 3ETDN31 3EWDN31 3FSDN31 3HBDN31 3HFDN31 3HGDN31 3HHDN31 3HLDN31 3HWDN31 3HYDN31 3JDDN31 3JHDN31 3JPDN31 3JSDN31 3LADN31 3LBDN31 3LGDN31 3LLDN31 3LQDN31 3LSDN31 3LWDN31 3NBDN31 3NEDN31 3PDDN31 3PGDN31 3PUDN31 3QFDN31 3QJDN31 3QLDN31 3RDDN31 3RPDN31 3SDDN31 3SGDN31 3SHDN31 3SLDN31 3SWDN31 3SXDN31 3SYDN31 3TDDN31 3TJDN31 3TNDN31 3UADN31 3WT

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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