DT1 1 postcode sector in the DT1 district

DT1 1 is a sector of the DT1 district: every postcode that starts DT1 1. It has 284 postcodes in use, 22 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 DT1 1 sector, by flood risk

Map of every postcode in the DT1 1 sector, by flood risk Of the 284 postcodes in the DT1 1 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst and 262 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Dorchester. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A35 DT1 1AA: not on the flood risk listDT1 1AD: not on the flood risk listDT1 1AE: not on the flood risk listDT1 1AF: not on the flood risk listDT1 1AG: not on the flood risk listDT1 1AH: not on the flood risk listDT1 1AL: not on the flood risk listDT1 1AN: not on the flood risk listDT1 1AP: not on the flood risk listDT1 1AQ: not on the flood risk listDT1 1AS: not on the flood risk listDT1 1AT: not on the flood risk listDT1 1AW: not on the flood risk listDT1 1AY: not on the flood risk listDT1 1BA: not on the flood risk listDT1 1BE: not on the flood risk listDT1 1BL: not on the flood risk listDT1 1BN: not on the flood risk listDT1 1BP: not on the flood risk listDT1 1BQ: not on the flood risk listDT1 1BS: not on the flood risk listDT1 1BT: not on the flood risk listDT1 1BW: not on the flood risk listDT1 1BY: not on the flood risk listDT1 1BZ: not on the flood risk listDT1 1DA: not on the flood risk listDT1 1DD: not on the flood risk listDT1 1DE: not on the flood risk listDT1 1DF: not on the flood risk listDT1 1DL: not on the flood risk listDT1 1DN: not on the flood risk listDT1 1DQ: not on the flood risk listDT1 1DR: not on the flood risk listDT1 1DS: not on the flood risk listDT1 1DT: not on the flood risk listDT1 1DU: not on the flood risk listDT1 1DW: not on the flood risk listDT1 1DX: not on the flood risk listDT1 1DY: not on the flood risk listDT1 1DZ: not on the flood risk listDT1 1EA: not on the flood risk listDT1 1EB: not on the flood risk listDT1 1ED: not on the flood risk listDT1 1EE: not on the flood risk listDT1 1EF: not on the flood risk listDT1 1EG: not on the flood risk listDT1 1EJ: not on the flood risk listDT1 1EL: not on the flood risk listDT1 1EN: not on the flood risk listDT1 1EQ: not on the flood risk listDT1 1ER: not on the flood risk listDT1 1ES: not on the flood risk listDT1 1ET: not on the flood risk listDT1 1EU: not on the flood risk listDT1 1EW: not on the flood risk listDT1 1EX: not on the flood risk listDT1 1EY: not on the flood risk listDT1 1EZ: not on the flood risk listDT1 1FD: not on the flood risk listDT1 1GA: not on the flood risk listDT1 1GH: not on the flood risk listDT1 1GJ: not on the flood risk listDT1 1GN: not on the flood risk listDT1 1GR: not on the flood risk listDT1 1GS: not on the flood risk listDT1 1GT: not on the flood risk listDT1 1GU: not on the flood risk listDT1 1GW: not on the flood risk listDT1 1GX: not on the flood risk listDT1 1GY: not on the flood risk listDT1 1GZ: not on the flood risk listDT1 1HA: not on the flood risk listDT1 1HB: not on the flood risk listDT1 1HD: not on the flood risk listDT1 1HE: not on the flood risk listDT1 1HF: not on the flood risk listDT1 1HH: not on the flood risk listDT1 1HL: not on the flood risk listDT1 1HN: not on the flood risk listDT1 1HR: not on the flood risk listDT1 1HS: not on the flood risk listDT1 1HW: not on the flood risk listDT1 1HX: not on the flood risk listDT1 1HY: not on the flood risk listDT1 1JA: not on the flood risk listDT1 1JE: not on the flood risk listDT1 1JH: not on the flood risk listDT1 1JJ: not on the flood risk listDT1 1JN: not on the flood risk listDT1 1JP: not on the flood risk listDT1 1JQ: not on the flood risk listDT1 1JR: not on the flood risk listDT1 1JS: not on the flood risk listDT1 1JT: not on the flood risk listDT1 1JU: not on the flood risk listDT1 1JX: not on the flood risk listDT1 1JY: not on the flood risk listDT1 1JZ: not on the flood risk listDT1 1LA: not on the flood risk listDT1 1LB: not on the flood risk listDT1 1LD: not on the flood risk listDT1 1LE: not on the flood risk listDT1 1LF: not on the flood risk listDT1 1LN: not on the flood risk listDT1 1LP: not on the flood risk listDT1 1LR: not on the flood risk listDT1 1LS: not on the flood risk listDT1 1LU: not on the flood risk listDT1 1LY: not on the flood risk listDT1 1LZ: not on the flood risk listDT1 1NA: not on the flood risk listDT1 1NB: not on the flood risk listDT1 1NH: not on the flood risk listDT1 1NJ: not on the flood risk listDT1 1NL: not on the flood risk listDT1 1NN: not on the flood risk listDT1 1NP: not on the flood risk listDT1 1NR: not on the flood risk listDT1 1NS: not on the flood risk listDT1 1NT: not on the flood risk listDT1 1NU: not on the flood risk listDT1 1NW: not on the flood risk listDT1 1NX: not on the flood risk listDT1 1NY: not on the flood risk listDT1 1NZ: not on the flood risk listDT1 1PA: not on the flood risk listDT1 1PB: not on the flood risk listDT1 1PD: not on the flood risk listDT1 1PF: not on the flood risk listDT1 1PG: not on the flood risk listDT1 1PJ: not on the flood risk listDT1 1PN: not on the flood risk listDT1 1PP: not on the flood risk listDT1 1PQ: not on the flood risk listDT1 1PR: not on the flood risk listDT1 1PS: not on the flood risk listDT1 1PT: not on the flood risk listDT1 1PU: not on the flood risk listDT1 1PW: not on the flood risk listDT1 1PZ: not on the flood risk listDT1 1QA: not on the flood risk listDT1 1QB: not on the flood risk listDT1 1QE: not on the flood risk listDT1 1QG: not on the flood risk listDT1 1QH: not on the flood risk listDT1 1QL: not on the flood risk listDT1 1QN: not on the flood risk listDT1 1QP: not on the flood risk listDT1 1QQ: not on the flood risk listDT1 1QR: not on the flood risk listDT1 1QS: not on the flood risk listDT1 1QU: not on the flood risk listDT1 1QW: not on the flood risk listDT1 1QX: not on the flood risk listDT1 1QY: not on the flood risk listDT1 1QZ: not on the flood risk listDT1 1RA: not on the flood risk listDT1 1RB: not on the flood risk listDT1 1RD: not on the flood risk listDT1 1RE: not on the flood risk listDT1 1RF: not on the flood risk listDT1 1RG: not on the flood risk listDT1 1RJ: not on the flood risk listDT1 1RL: not on the flood risk listDT1 1RN: not on the flood risk listDT1 1RP: not on the flood risk listDT1 1RQ: not on the flood risk listDT1 1RR: not on the flood risk listDT1 1RS: not on the flood risk listDT1 1RT: not on the flood risk listDT1 1RU: not on the flood risk listDT1 1RX: not on the flood risk listDT1 1RY: not on the flood risk listDT1 1RZ: not on the flood risk listDT1 1SB: not on the flood risk listDT1 1SD: not on the flood risk listDT1 1SE: not on the flood risk listDT1 1SF: not on the flood risk listDT1 1SG: not on the flood risk listDT1 1SH: not on the flood risk listDT1 1SL: not on the flood risk listDT1 1SP: not on the flood risk listDT1 1SQ: not on the flood risk listDT1 1SR: not on the flood risk listDT1 1ST: not on the flood risk listDT1 1SU: not on the flood risk listDT1 1SZ: not on the flood risk listDT1 1TA: not on the flood risk listDT1 1TB: not on the flood risk listDT1 1TD: not on the flood risk listDT1 1TE: not on the flood risk listDT1 1TF: not on the flood risk listDT1 1TJ: not on the flood risk listDT1 1TL: not on the flood risk listDT1 1TP: not on the flood risk listDT1 1TQ: not on the flood risk listDT1 1TR: not on the flood risk listDT1 1TT: not on the flood risk listDT1 1TU: not on the flood risk listDT1 1TW: not on the flood risk listDT1 1TY: not on the flood risk listDT1 1TZ: not on the flood risk listDT1 1UB: not on the flood risk listDT1 1UD: not on the flood risk listDT1 1UE: not on the flood risk listDT1 1UF: not on the flood risk listDT1 1UH: not on the flood risk listDT1 1UJ: not on the flood risk listDT1 1UL: not on the flood risk listDT1 1UN: not on the flood risk listDT1 1UP: not on the flood risk listDT1 1UQ: not on the flood risk listDT1 1UR: not on the flood risk listDT1 1US: not on the flood risk listDT1 1UT: not on the flood risk listDT1 1UU: not on the flood risk listDT1 1UW: not on the flood risk listDT1 1UX: not on the flood risk listDT1 1UY: not on the flood risk listDT1 1WB: not on the flood risk listDT1 1WF: not on the flood risk listDT1 1WJ: not on the flood risk listDT1 1WN: not on the flood risk listDT1 1WP: not on the flood risk listDT1 1WQ: not on the flood risk listDT1 1WR: not on the flood risk listDT1 1WS: not on the flood risk listDT1 1WT: not on the flood risk listDT1 1WU: not on the flood risk listDT1 1WX: not on the flood risk listDT1 1WZ: not on the flood risk listDT1 1XA: not on the flood risk listDT1 1XB: not on the flood risk listDT1 1XD: not on the flood risk listDT1 1XF: not on the flood risk listDT1 1XG: not on the flood risk listDT1 1XH: not on the flood risk listDT1 1XJ: not on the flood risk listDT1 1XL: not on the flood risk listDT1 1XN: not on the flood risk listDT1 1XP: not on the flood risk listDT1 1XQ: not on the flood risk listDT1 1XR: not on the flood risk listDT1 1XS: not on the flood risk listDT1 1XT: not on the flood risk listDT1 1XY: not on the flood risk listDT1 1XZ: not on the flood risk listDT1 1YA: not on the flood risk listDT1 1YB: not on the flood risk listDT1 1YD: not on the flood risk listDT1 1YE: not on the flood risk listDT1 1YG: not on the flood risk listDT1 1ZF: not on the flood risk listDT1 1ZL: not on the flood risk listDT1 1ZP: not on the flood risk listDT1 1AB: low flood risk at worstDT1 1LJ: low flood risk at worstDT1 1LL: low flood risk at worstDT1 1LW: low flood risk at worstDT1 1ND: low flood risk at worstDT1 1NQ: low flood risk at worstDT1 1PE: low flood risk at worstDT1 1SS: low flood risk at worstDT1 1SX: low flood risk at worstDT1 1WY: low flood risk at worstDT1 1NE: medium flood risk at worstDT1 1NF: medium flood risk at worstDT1 1HU: high flood riskDT1 1JG: high flood riskDT1 1LG: high flood riskDT1 1LT: high flood riskDT1 1LX: high flood riskDT1 1PL: high flood riskDT1 1XE: high flood riskDT1 1XU: high flood riskDT1 1XW: high flood risk Dorchester 5 postcodes at high or medium risk, outlined: this goes to DT1 1LX, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in the DT1 1 sector, by flood risk Of the 284 postcodes in the DT1 1 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst and 262 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. One postcode lies beyond the edge and is listed under the map. Places named: Dorchester. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A35 Dorchester
  • A home or business at high risk: 9
  • At medium risk at worst: 2
  • At low risk at worst: 11
  • At very low risk only: 0
  • Not on the at-risk list: 262
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 284 postcodes in the DT1 1 sector that ONS places, 9 have a home or business at high risk, 2 are at medium risk at worst, 11 are at low risk at worst and 262 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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.

DT1 1LX17 at high riskDT1 1LG2 at high riskDT1 1XW2 at high riskDT1 1HU1 at high riskDT1 1JG1 at high riskDT1 1LT1 at high riskDT1 1PL1 at high riskDT1 1XE1 at high riskDT1 1XU1 at high risk

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.

DT1 1UA

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. DT1 1LX, is the one with most homes and businesses at high risk.

What do homes sell for in DT1 1?

Homes in DT1 1 sold for a typical £236,250 in the 12 months to August 2026, across 114 sales, down 9.8% on the 12 months before, HM Land Registry's figures show.

£236,250 typical price, the 12 months to August 2026
£262,000 12 months to August 2025
▼ down 9.8% on the 12 months before
  • Detached £460,000 8 sales
  • Semi-detached £318,500 10 sales
  • Terraced £262,500 38 sales
  • Flat or maisonette £152,500 58 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 DT1 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 DT1 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.

DT1 1AADT1 1ABDT1 1ADDT1 1AEDT1 1AFDT1 1AGDT1 1AHDT1 1ALDT1 1ANDT1 1APDT1 1AQDT1 1ASDT1 1ATDT1 1AWDT1 1AYDT1 1BADT1 1BEDT1 1BLDT1 1BNDT1 1BPDT1 1BQDT1 1BSDT1 1BTDT1 1BWDT1 1BYDT1 1BZDT1 1DADT1 1DDDT1 1DEDT1 1DFDT1 1DHDT1 1DLDT1 1DNDT1 1DQDT1 1DRDT1 1DSDT1 1DTDT1 1DUDT1 1DWDT1 1DXDT1 1DYDT1 1DZDT1 1EADT1 1EBDT1 1EDDT1 1EEDT1 1EFDT1 1EGDT1 1EJDT1 1ELDT1 1ENDT1 1EQDT1 1ERDT1 1ESDT1 1ETDT1 1EUDT1 1EWDT1 1EXDT1 1EYDT1 1EZDT1 1FDDT1 1GADT1 1GHDT1 1GJDT1 1GLDT1 1GNDT1 1GRDT1 1GSDT1 1GTDT1 1GUDT1 1GWDT1 1GXDT1 1GYDT1 1GZDT1 1HADT1 1HBDT1 1HDDT1 1HEDT1 1HFDT1 1HHDT1 1HLDT1 1HNDT1 1HRDT1 1HSDT1 1HUDT1 1HWDT1 1HXDT1 1HYDT1 1JADT1 1JEDT1 1JFDT1 1JGDT1 1JHDT1 1JJDT1 1JNDT1 1JPDT1 1JQDT1 1JRDT1 1JSDT1 1JTDT1 1JUDT1 1JWDT1 1JXDT1 1JYDT1 1JZDT1 1LADT1 1LBDT1 1LDDT1 1LEDT1 1LFDT1 1LGDT1 1LHDT1 1LJDT1 1LLDT1 1LNDT1 1LPDT1 1LQDT1 1LRDT1 1LSDT1 1LTDT1 1LUDT1 1LWDT1 1LXDT1 1LYDT1 1LZDT1 1NADT1 1NBDT1 1NDDT1 1NEDT1 1NFDT1 1NHDT1 1NJDT1 1NLDT1 1NNDT1 1NPDT1 1NQDT1 1NRDT1 1NSDT1 1NTDT1 1NUDT1 1NWDT1 1NXDT1 1NYDT1 1NZDT1 1PADT1 1PBDT1 1PDDT1 1PEDT1 1PFDT1 1PGDT1 1PJDT1 1PLDT1 1PNDT1 1PPDT1 1PQDT1 1PRDT1 1PSDT1 1PTDT1 1PUDT1 1PWDT1 1PZDT1 1QADT1 1QBDT1 1QEDT1 1QGDT1 1QHDT1 1QLDT1 1QNDT1 1QPDT1 1QQDT1 1QRDT1 1QSDT1 1QUDT1 1QWDT1 1QXDT1 1QYDT1 1QZDT1 1RADT1 1RBDT1 1RDDT1 1REDT1 1RFDT1 1RGDT1 1RJDT1 1RLDT1 1RNDT1 1RPDT1 1RQDT1 1RRDT1 1RSDT1 1RTDT1 1RUDT1 1RXDT1 1RYDT1 1RZDT1 1SBDT1 1SDDT1 1SEDT1 1SFDT1 1SGDT1 1SHDT1 1SLDT1 1SPDT1 1SQDT1 1SRDT1 1SSDT1 1STDT1 1SUDT1 1SXDT1 1SZDT1 1TADT1 1TBDT1 1TDDT1 1TEDT1 1TFDT1 1TJDT1 1TLDT1 1TPDT1 1TQDT1 1TRDT1 1TTDT1 1TUDT1 1TWDT1 1TYDT1 1TZDT1 1UADT1 1UBDT1 1UDDT1 1UEDT1 1UFDT1 1UHDT1 1UJDT1 1ULDT1 1UNDT1 1UPDT1 1UQDT1 1URDT1 1USDT1 1UTDT1 1UUDT1 1UWDT1 1UXDT1 1UYDT1 1WBDT1 1WDDT1 1WFDT1 1WJDT1 1WNDT1 1WPDT1 1WQDT1 1WRDT1 1WSDT1 1WTDT1 1WUDT1 1WXDT1 1WYDT1 1WZDT1 1XADT1 1XBDT1 1XDDT1 1XEDT1 1XFDT1 1XGDT1 1XHDT1 1XJDT1 1XLDT1 1XNDT1 1XPDT1 1XQDT1 1XRDT1 1XSDT1 1XTDT1 1XUDT1 1XWDT1 1XYDT1 1XZDT1 1YADT1 1YBDT1 1YDDT1 1YEDT1 1YGDT1 1ZFDT1 1ZLDT1 1ZP

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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