DN21 3 postcode sector in the DN21 district

DN21 3 is a sector of the DN21 district: every postcode that starts DN21 3. It has 268 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the DN21 3 sector, and which are new since 2020

Map of every postcode in the DN21 3 sector, by new since 2020 Of the 268 postcodes in the DN21 3 sector that ONS places, 5 are new since 2020 and 263 were in use before 2020. Places named: Gainsborough, Scotter. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A631 DN21 3AA: before 2020DN21 3AB: before 2020DN21 3AD: before 2020DN21 3AH: before 2020DN21 3AJ: before 2020DN21 3AP: before 2020DN21 3AQ: before 2020DN21 3AT: before 2020DN21 3AW: before 2020DN21 3BF: before 2020DN21 3BH: before 2020DN21 3BJ: before 2020DN21 3BL: before 2020DN21 3BN: before 2020DN21 3BP: before 2020DN21 3BQ: before 2020DN21 3BS: before 2020DN21 3BT: before 2020DN21 3BU: before 2020DN21 3BW: before 2020DN21 3BY: before 2020DN21 3BZ: before 2020DN21 3DA: before 2020DN21 3DB: before 2020DN21 3DD: before 2020DN21 3DE: before 2020DN21 3DF: before 2020DN21 3DG: before 2020DN21 3DH: before 2020DN21 3DJ: before 2020DN21 3DL: before 2020DN21 3DP: before 2020DN21 3DQ: before 2020DN21 3DR: before 2020DN21 3DS: before 2020DN21 3DT: before 2020DN21 3DU: before 2020DN21 3DW: before 2020DN21 3DX: before 2020DN21 3DY: before 2020DN21 3DZ: before 2020DN21 3EA: before 2020DN21 3EB: before 2020DN21 3ED: before 2020DN21 3EE: before 2020DN21 3EF: before 2020DN21 3EG: before 2020DN21 3EH: before 2020DN21 3EL: before 2020DN21 3EN: before 2020DN21 3EP: before 2020DN21 3EQ: before 2020DN21 3ER: before 2020DN21 3ES: before 2020DN21 3ET: before 2020DN21 3EU: before 2020DN21 3EW: before 2020DN21 3EX: before 2020DN21 3EY: before 2020DN21 3EZ: before 2020DN21 3FA: before 2020DN21 3FB: before 2020DN21 3FD: before 2020DN21 3GA: before 2020DN21 3GB: before 2020DN21 3GD: before 2020DN21 3GE: before 2020DN21 3GF: before 2020DN21 3GR: before 2020DN21 3GT: before 2020DN21 3HA: before 2020DN21 3HB: before 2020DN21 3HD: before 2020DN21 3HE: before 2020DN21 3HG: before 2020DN21 3HH: before 2020DN21 3HJ: before 2020DN21 3HP: before 2020DN21 3HQ: before 2020DN21 3HR: before 2020DN21 3HS: before 2020DN21 3HT: before 2020DN21 3HU: before 2020DN21 3HX: before 2020DN21 3HY: before 2020DN21 3HZ: before 2020DN21 3JA: before 2020DN21 3JB: before 2020DN21 3JD: before 2020DN21 3JE: before 2020DN21 3JF: before 2020DN21 3JH: before 2020DN21 3JJ: before 2020DN21 3JL: before 2020DN21 3JN: before 2020DN21 3JQ: before 2020DN21 3JY: before 2020DN21 3JZ: before 2020DN21 3LA: before 2020DN21 3LB: before 2020DN21 3LD: before 2020DN21 3LE: before 2020DN21 3LF: before 2020DN21 3LG: before 2020DN21 3LH: before 2020DN21 3LJ: before 2020DN21 3LL: before 2020DN21 3LN: before 2020DN21 3LP: before 2020DN21 3LQ: before 2020DN21 3LS: before 2020DN21 3LW: before 2020DN21 3LX: before 2020DN21 3LY: before 2020DN21 3LZ: before 2020DN21 3NA: before 2020DN21 3NB: before 2020DN21 3ND: before 2020DN21 3NF: before 2020DN21 3NG: before 2020DN21 3NH: before 2020DN21 3NJ: before 2020DN21 3NP: before 2020DN21 3NQ: before 2020DN21 3NR: before 2020DN21 3NS: before 2020DN21 3NT: before 2020DN21 3NU: before 2020DN21 3NW: before 2020DN21 3NX: before 2020DN21 3NY: before 2020DN21 3PA: before 2020DN21 3PB: before 2020DN21 3PD: before 2020DN21 3PE: before 2020DN21 3PF: before 2020DN21 3PG: before 2020DN21 3PJ: before 2020DN21 3PP: before 2020DN21 3PR: before 2020DN21 3PS: before 2020DN21 3PT: before 2020DN21 3PU: before 2020DN21 3PX: before 2020DN21 3PY: before 2020DN21 3PZ: before 2020DN21 3QB: before 2020DN21 3QD: before 2020DN21 3QE: before 2020DN21 3QF: before 2020DN21 3QG: before 2020DN21 3QH: before 2020DN21 3QL: before 2020DN21 3QP: before 2020DN21 3QR: before 2020DN21 3QS: before 2020DN21 3QT: before 2020DN21 3QU: before 2020DN21 3QX: before 2020DN21 3QZ: before 2020DN21 3RA: before 2020DN21 3RB: before 2020DN21 3RF: before 2020DN21 3RG: before 2020DN21 3RH: before 2020DN21 3RJ: before 2020DN21 3RL: before 2020DN21 3RN: before 2020DN21 3RP: before 2020DN21 3RS: before 2020DN21 3RT: before 2020DN21 3RU: before 2020DN21 3RW: before 2020DN21 3RX: before 2020DN21 3RY: before 2020DN21 3SA: before 2020DN21 3SB: before 2020DN21 3SE: before 2020DN21 3SF: before 2020DN21 3SG: before 2020DN21 3SL: before 2020DN21 3SN: before 2020DN21 3SP: before 2020DN21 3SR: before 2020DN21 3ST: before 2020DN21 3SU: before 2020DN21 3SX: before 2020DN21 3SZ: before 2020DN21 3TB: before 2020DN21 3TE: before 2020DN21 3TF: before 2020DN21 3TH: before 2020DN21 3TQ: before 2020DN21 3TR: before 2020DN21 3TT: before 2020DN21 3TU: before 2020DN21 3TY: before 2020DN21 3TZ: before 2020DN21 3UA: before 2020DN21 3UD: before 2020DN21 3UE: before 2020DN21 3UG: before 2020DN21 3UH: before 2020DN21 3UJ: before 2020DN21 3UL: before 2020DN21 3UN: before 2020DN21 3UP: before 2020DN21 3UQ: before 2020DN21 3UR: before 2020DN21 3UT: before 2020DN21 3UW: before 2020DN21 3UX: before 2020DN21 3AE: before 2020DN21 3AR: before 2020DN21 3AY: before 2020DN21 3FE: new since 2020DN21 3FF: new since 2020DN21 3FG: new since 2020DN21 3FJ: new since 2020DN21 3FH: new since 2020 GainsboroughScotter Map of every postcode in the DN21 3 sector, by new since 2020 Of the 268 postcodes in the DN21 3 sector that ONS places, 5 are new since 2020 and 263 were in use before 2020. Places named: Gainsborough, Scotter. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. GainsboroughScotter
  • New since 2020: 5
  • In use before 2020: 263

Of the 268 postcodes in the DN21 3 sector that ONS places, 5 are new since 2020 and 263 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.

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 5 newest postcodes

DN21 3FHMay 2023DN21 3FGJanuary 2023DN21 3FJJanuary 2023DN21 3FFFebruary 2022DN21 3FEJuly 2021

What do homes sell for in DN21 3?

Homes in DN21 3 sold for a typical £253,000 in the 12 months to August 2026, across 85 sales, up 2.8% on the 12 months before, HM Land Registry's figures show.

£253,000 typical price, the 12 months to August 2026
£246,000 12 months to August 2025
▲ up 2.8% on the 12 months before
  • Detached £305,000 56 sales
  • Semi-detached £215,000 19 sales
  • Terraced £138,000 9 sales
  • Flat or maisonette 1 sale, 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 DN21 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 DN21 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.

DN21 3AADN21 3ABDN21 3ADDN21 3AEDN21 3AGDN21 3AHDN21 3AJDN21 3ALDN21 3ANDN21 3APDN21 3AQDN21 3ARDN21 3ASDN21 3ATDN21 3AUDN21 3AWDN21 3AXDN21 3AYDN21 3AZDN21 3BADN21 3BBDN21 3BDDN21 3BFDN21 3BGDN21 3BHDN21 3BJDN21 3BLDN21 3BNDN21 3BPDN21 3BQDN21 3BSDN21 3BTDN21 3BUDN21 3BWDN21 3BXDN21 3BYDN21 3BZDN21 3DADN21 3DBDN21 3DDDN21 3DEDN21 3DFDN21 3DGDN21 3DHDN21 3DJDN21 3DLDN21 3DNDN21 3DPDN21 3DQDN21 3DRDN21 3DSDN21 3DTDN21 3DUDN21 3DWDN21 3DXDN21 3DYDN21 3DZDN21 3EADN21 3EBDN21 3EDDN21 3EEDN21 3EFDN21 3EGDN21 3EHDN21 3ELDN21 3ENDN21 3EPDN21 3EQDN21 3ERDN21 3ESDN21 3ETDN21 3EUDN21 3EWDN21 3EXDN21 3EYDN21 3EZDN21 3FADN21 3FBDN21 3FDDN21 3FEDN21 3FFDN21 3FGDN21 3FHDN21 3FJDN21 3GADN21 3GBDN21 3GDDN21 3GEDN21 3GFDN21 3GRDN21 3GTDN21 3HADN21 3HBDN21 3HDDN21 3HEDN21 3HGDN21 3HHDN21 3HJDN21 3HPDN21 3HQDN21 3HRDN21 3HSDN21 3HTDN21 3HUDN21 3HXDN21 3HYDN21 3HZDN21 3JADN21 3JBDN21 3JDDN21 3JEDN21 3JFDN21 3JHDN21 3JJDN21 3JLDN21 3JNDN21 3JQDN21 3JXDN21 3JYDN21 3JZDN21 3LADN21 3LBDN21 3LDDN21 3LEDN21 3LFDN21 3LGDN21 3LHDN21 3LJDN21 3LLDN21 3LNDN21 3LPDN21 3LQDN21 3LRDN21 3LSDN21 3LTDN21 3LWDN21 3LXDN21 3LYDN21 3LZDN21 3NADN21 3NBDN21 3NDDN21 3NEDN21 3NFDN21 3NGDN21 3NHDN21 3NJDN21 3NLDN21 3NNDN21 3NPDN21 3NQDN21 3NRDN21 3NSDN21 3NTDN21 3NUDN21 3NWDN21 3NXDN21 3NYDN21 3NZDN21 3PADN21 3PBDN21 3PDDN21 3PEDN21 3PFDN21 3PGDN21 3PHDN21 3PJDN21 3PPDN21 3PRDN21 3PSDN21 3PTDN21 3PUDN21 3PXDN21 3PYDN21 3PZDN21 3QBDN21 3QDDN21 3QEDN21 3QFDN21 3QGDN21 3QHDN21 3QLDN21 3QPDN21 3QRDN21 3QSDN21 3QTDN21 3QUDN21 3QXDN21 3QYDN21 3QZDN21 3RADN21 3RBDN21 3REDN21 3RFDN21 3RGDN21 3RHDN21 3RJDN21 3RLDN21 3RNDN21 3RPDN21 3RQDN21 3RRDN21 3RSDN21 3RTDN21 3RUDN21 3RWDN21 3RXDN21 3RYDN21 3RZDN21 3SADN21 3SBDN21 3SDDN21 3SEDN21 3SFDN21 3SGDN21 3SHDN21 3SJDN21 3SLDN21 3SNDN21 3SPDN21 3SQDN21 3SRDN21 3SSDN21 3STDN21 3SUDN21 3SWDN21 3SXDN21 3SYDN21 3SZDN21 3TADN21 3TBDN21 3TDDN21 3TEDN21 3TFDN21 3TGDN21 3THDN21 3TJDN21 3TLDN21 3TNDN21 3TPDN21 3TQDN21 3TRDN21 3TSDN21 3TTDN21 3TUDN21 3TWDN21 3TXDN21 3TYDN21 3TZDN21 3UADN21 3UBDN21 3UDDN21 3UEDN21 3UFDN21 3UGDN21 3UHDN21 3UJDN21 3ULDN21 3UNDN21 3UPDN21 3UQDN21 3URDN21 3UTDN21 3UUDN21 3UWDN21 3UXDN21 3UZDN21 3WA

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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