DL12 9 postcode sector in the DL12 district

DL12 9 is a sector of the DL12 district: every postcode that starts DL12 9. It has 233 postcodes in use, 4 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 DL12 9 sector, and which are new since 2020

Map of every postcode in the DL12 9 sector, by new since 2020 Of the 233 postcodes in the DL12 9 sector that ONS places, 2 are new since 2020 and 231 were in use before 2020. Places named: Barnard Castle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A688 DL12 9AA: before 2020DL12 9AB: before 2020DL12 9AD: before 2020DL12 9AE: before 2020DL12 9AF: before 2020DL12 9AG: before 2020DL12 9AH: before 2020DL12 9AJ: before 2020DL12 9AL: before 2020DL12 9AN: before 2020DL12 9AP: before 2020DL12 9AQ: before 2020DL12 9AS: before 2020DL12 9AT: before 2020DL12 9AW: before 2020DL12 9AY: before 2020DL12 9AZ: before 2020DL12 9BD: before 2020DL12 9BF: before 2020DL12 9BG: before 2020DL12 9BL: before 2020DL12 9BP: before 2020DL12 9BT: before 2020DL12 9BU: before 2020DL12 9BW: before 2020DL12 9DA: before 2020DL12 9DB: before 2020DL12 9DE: before 2020DL12 9DF: before 2020DL12 9DG: before 2020DL12 9DH: before 2020DL12 9DJ: before 2020DL12 9DL: before 2020DL12 9DN: before 2020DL12 9DP: before 2020DL12 9DQ: before 2020DL12 9DR: before 2020DL12 9DW: before 2020DL12 9DY: before 2020DL12 9DZ: before 2020DL12 9ED: before 2020DL12 9EE: before 2020DL12 9EF: before 2020DL12 9EJ: before 2020DL12 9EL: before 2020DL12 9EQ: before 2020DL12 9ER: before 2020DL12 9ES: before 2020DL12 9ET: before 2020DL12 9EU: before 2020DL12 9EW: before 2020DL12 9EX: before 2020DL12 9EY: before 2020DL12 9EZ: before 2020DL12 9HA: before 2020DL12 9HB: before 2020DL12 9HH: before 2020DL12 9HJ: before 2020DL12 9HR: before 2020DL12 9HT: before 2020DL12 9HX: before 2020DL12 9HZ: before 2020DL12 9JB: before 2020DL12 9JE: before 2020DL12 9JF: before 2020DL12 9JG: before 2020DL12 9JH: before 2020DL12 9JJ: before 2020DL12 9JL: before 2020DL12 9JN: before 2020DL12 9JP: before 2020DL12 9JQ: before 2020DL12 9JR: before 2020DL12 9JS: before 2020DL12 9JW: before 2020DL12 9LH: before 2020DL12 9LL: before 2020DL12 9LR: before 2020DL12 9LT: before 2020DL12 9LU: before 2020DL12 9LX: before 2020DL12 9LY: before 2020DL12 9LZ: before 2020DL12 9NA: before 2020DL12 9NB: before 2020DL12 9NJ: before 2020DL12 9NN: before 2020DL12 9NT: before 2020DL12 9PG: before 2020DL12 9PH: before 2020DL12 9PJ: before 2020DL12 9PN: before 2020DL12 9PP: before 2020DL12 9PQ: before 2020DL12 9PT: before 2020DL12 9QA: before 2020DL12 9QB: before 2020DL12 9QL: before 2020DL12 9QP: before 2020DL12 9QR: before 2020DL12 9QW: before 2020DL12 9QY: before 2020DL12 9RA: before 2020DL12 9RB: before 2020DL12 9RD: before 2020DL12 9RE: before 2020DL12 9RF: before 2020DL12 9RG: before 2020DL12 9RH: before 2020DL12 9RL: before 2020DL12 9RN: before 2020DL12 9RQ: before 2020DL12 9RR: before 2020DL12 9RS: before 2020DL12 9RT: before 2020DL12 9RU: before 2020DL12 9RX: before 2020DL12 9RY: before 2020DL12 9RZ: before 2020DL12 9SA: before 2020DL12 9SB: before 2020DL12 9SD: before 2020DL12 9SE: before 2020DL12 9SF: before 2020DL12 9SG: before 2020DL12 9SH: before 2020DL12 9SJ: before 2020DL12 9SL: before 2020DL12 9SN: before 2020DL12 9SP: before 2020DL12 9SQ: before 2020DL12 9SR: before 2020DL12 9SS: before 2020DL12 9ST: before 2020DL12 9SU: before 2020DL12 9SW: before 2020DL12 9SX: before 2020DL12 9SY: before 2020DL12 9SZ: before 2020DL12 9TA: before 2020DL12 9TH: before 2020DL12 9TJ: before 2020DL12 9TL: before 2020DL12 9TN: before 2020DL12 9TP: before 2020DL12 9TR: before 2020DL12 9TS: before 2020DL12 9TT: before 2020DL12 9TU: before 2020DL12 9TW: before 2020DL12 9TX: before 2020DL12 9TY: before 2020DL12 9TZ: before 2020DL12 9UA: before 2020DL12 9UB: before 2020DL12 9UH: before 2020DL12 9UJ: before 2020DL12 9UL: before 2020DL12 9UN: before 2020DL12 9UP: before 2020DL12 9UQ: before 2020DL12 9UR: before 2020DL12 9UT: before 2020DL12 9UU: before 2020DL12 9UW: before 2020DL12 9UX: before 2020DL12 9NP: before 2020DL12 9BA: before 2020DL12 9BX: new since 2020DL12 9DS: new since 2020 Barnard Castle Map of every postcode in the DL12 9 sector, by new since 2020 Of the 233 postcodes in the DL12 9 sector that ONS places, 2 are new since 2020 and 231 were in use before 2020. Places named: Barnard Castle. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. A688 Barnard Castle
  • New since 2020: 2
  • In use before 2020: 231

Of the 233 postcodes in the DL12 9 sector that ONS places, 2 are new since 2020 and 231 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 2 newest postcodes

DL12 9DSNovember 2023DL12 9BXOctober 2022

What do homes sell for in DL12 9?

Homes in DL12 9 sold for a typical £255,000 in the 12 months to August 2026, across 43 sales, down 12.5% on the 12 months before, HM Land Registry's figures show.

£255,000 typical price, the 12 months to August 2026
£291,500 12 months to August 2025
▼ down 12.5% on the 12 months before
  • Detached £330,000 23 sales
  • Semi-detached £235,000 13 sales
  • Terraced £183,750 6 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 DL12 9. 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 DL12 9

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.

DL12 9AADL12 9ABDL12 9ADDL12 9AEDL12 9AFDL12 9AGDL12 9AHDL12 9AJDL12 9ALDL12 9ANDL12 9APDL12 9AQDL12 9ARDL12 9ASDL12 9ATDL12 9AUDL12 9AWDL12 9AXDL12 9AYDL12 9AZDL12 9BADL12 9BBDL12 9BDDL12 9BEDL12 9BFDL12 9BGDL12 9BHDL12 9BJDL12 9BLDL12 9BNDL12 9BPDL12 9BQDL12 9BTDL12 9BUDL12 9BWDL12 9BXDL12 9BYDL12 9BZDL12 9DADL12 9DBDL12 9DDDL12 9DEDL12 9DFDL12 9DGDL12 9DHDL12 9DJDL12 9DLDL12 9DNDL12 9DPDL12 9DQDL12 9DRDL12 9DSDL12 9DUDL12 9DWDL12 9DXDL12 9DYDL12 9DZDL12 9EADL12 9EBDL12 9EDDL12 9EEDL12 9EFDL12 9EGDL12 9EHDL12 9EJDL12 9ELDL12 9ENDL12 9EQDL12 9ERDL12 9ESDL12 9ETDL12 9EUDL12 9EWDL12 9EXDL12 9EYDL12 9EZDL12 9HADL12 9HBDL12 9HDDL12 9HHDL12 9HJDL12 9HLDL12 9HNDL12 9HPDL12 9HRDL12 9HTDL12 9HUDL12 9HWDL12 9HXDL12 9HZDL12 9JBDL12 9JEDL12 9JFDL12 9JGDL12 9JHDL12 9JJDL12 9JLDL12 9JNDL12 9JPDL12 9JQDL12 9JRDL12 9JSDL12 9JUDL12 9JWDL12 9LDDL12 9LEDL12 9LGDL12 9LHDL12 9LJDL12 9LLDL12 9LPDL12 9LQDL12 9LRDL12 9LSDL12 9LTDL12 9LUDL12 9LWDL12 9LXDL12 9LYDL12 9LZDL12 9NADL12 9NBDL12 9NJDL12 9NLDL12 9NNDL12 9NPDL12 9NRDL12 9NSDL12 9NTDL12 9NUDL12 9NWDL12 9NXDL12 9PADL12 9PBDL12 9PEDL12 9PFDL12 9PGDL12 9PHDL12 9PJDL12 9PLDL12 9PNDL12 9PPDL12 9PQDL12 9PRDL12 9PTDL12 9PUDL12 9PWDL12 9PXDL12 9PYDL12 9PZDL12 9QADL12 9QBDL12 9QDDL12 9QEDL12 9QFDL12 9QGDL12 9QHDL12 9QJDL12 9QLDL12 9QPDL12 9QQDL12 9QRDL12 9QSDL12 9QTDL12 9QUDL12 9QWDL12 9QXDL12 9QYDL12 9RADL12 9RBDL12 9RDDL12 9REDL12 9RFDL12 9RGDL12 9RHDL12 9RLDL12 9RNDL12 9RQDL12 9RRDL12 9RSDL12 9RTDL12 9RUDL12 9RXDL12 9RYDL12 9RZDL12 9SADL12 9SBDL12 9SDDL12 9SEDL12 9SFDL12 9SGDL12 9SHDL12 9SJDL12 9SLDL12 9SNDL12 9SPDL12 9SQDL12 9SRDL12 9SSDL12 9STDL12 9SUDL12 9SWDL12 9SXDL12 9SYDL12 9SZDL12 9TADL12 9TBDL12 9THDL12 9TJDL12 9TLDL12 9TNDL12 9TPDL12 9TRDL12 9TSDL12 9TTDL12 9TUDL12 9TWDL12 9TXDL12 9TYDL12 9TZDL12 9UADL12 9UBDL12 9UHDL12 9UJDL12 9ULDL12 9UNDL12 9UPDL12 9UQDL12 9URDL12 9UTDL12 9UUDL12 9UWDL12 9UX

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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