TS21 1 postcode sector in the TS21 district

TS21 1 is a sector of the TS21 district: every postcode that starts TS21 1. It has 203 postcodes in use, 5 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 TS21 1 sector, by flood risk

Map of every postcode in the TS21 1 sector, by flood risk Of the 203 postcodes in the TS21 1 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 192 are not on the Environment Agency's at-risk list. Places named: Stockton-on-Tees. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1027 TS21 1AA: not on the flood risk listTS21 1AB: not on the flood risk listTS21 1AD: not on the flood risk listTS21 1AE: not on the flood risk listTS21 1AF: not on the flood risk listTS21 1AG: not on the flood risk listTS21 1AH: not on the flood risk listTS21 1AJ: not on the flood risk listTS21 1AN: not on the flood risk listTS21 1AR: not on the flood risk listTS21 1AT: not on the flood risk listTS21 1AU: not on the flood risk listTS21 1AW: not on the flood risk listTS21 1AX: not on the flood risk listTS21 1AY: not on the flood risk listTS21 1AZ: not on the flood risk listTS21 1BA: not on the flood risk listTS21 1BB: not on the flood risk listTS21 1BD: not on the flood risk listTS21 1BE: not on the flood risk listTS21 1BF: not on the flood risk listTS21 1BG: not on the flood risk listTS21 1BH: not on the flood risk listTS21 1BJ: not on the flood risk listTS21 1BL: not on the flood risk listTS21 1BN: not on the flood risk listTS21 1BQ: not on the flood risk listTS21 1BS: not on the flood risk listTS21 1BU: not on the flood risk listTS21 1BW: not on the flood risk listTS21 1BX: not on the flood risk listTS21 1BY: not on the flood risk listTS21 1BZ: not on the flood risk listTS21 1DA: not on the flood risk listTS21 1DB: not on the flood risk listTS21 1DD: not on the flood risk listTS21 1DE: not on the flood risk listTS21 1DG: not on the flood risk listTS21 1DH: not on the flood risk listTS21 1DL: not on the flood risk listTS21 1DN: not on the flood risk listTS21 1DQ: not on the flood risk listTS21 1DR: not on the flood risk listTS21 1DS: not on the flood risk listTS21 1DW: not on the flood risk listTS21 1DX: not on the flood risk listTS21 1DZ: not on the flood risk listTS21 1EA: not on the flood risk listTS21 1EB: not on the flood risk listTS21 1EE: not on the flood risk listTS21 1EG: not on the flood risk listTS21 1EJ: not on the flood risk listTS21 1EL: not on the flood risk listTS21 1EN: not on the flood risk listTS21 1EP: not on the flood risk listTS21 1ER: not on the flood risk listTS21 1ES: not on the flood risk listTS21 1ET: not on the flood risk listTS21 1EU: not on the flood risk listTS21 1EW: not on the flood risk listTS21 1EX: not on the flood risk listTS21 1EY: not on the flood risk listTS21 1EZ: not on the flood risk listTS21 1FA: not on the flood risk listTS21 1FD: not on the flood risk listTS21 1FE: not on the flood risk listTS21 1FF: not on the flood risk listTS21 1FH: not on the flood risk listTS21 1FJ: not on the flood risk listTS21 1FL: not on the flood risk listTS21 1FN: not on the flood risk listTS21 1FP: not on the flood risk listTS21 1FQ: not on the flood risk listTS21 1FR: not on the flood risk listTS21 1FS: not on the flood risk listTS21 1FT: not on the flood risk listTS21 1FU: not on the flood risk listTS21 1FX: not on the flood risk listTS21 1FY: not on the flood risk listTS21 1GA: not on the flood risk listTS21 1GB: not on the flood risk listTS21 1GG: not on the flood risk listTS21 1GH: not on the flood risk listTS21 1GJ: not on the flood risk listTS21 1GL: not on the flood risk listTS21 1GN: not on the flood risk listTS21 1GP: not on the flood risk listTS21 1GS: not on the flood risk listTS21 1GT: not on the flood risk listTS21 1HB: not on the flood risk listTS21 1HD: not on the flood risk listTS21 1HF: not on the flood risk listTS21 1HG: not on the flood risk listTS21 1HH: not on the flood risk listTS21 1HL: not on the flood risk listTS21 1HN: not on the flood risk listTS21 1HP: not on the flood risk listTS21 1HQ: not on the flood risk listTS21 1HS: not on the flood risk listTS21 1HT: not on the flood risk listTS21 1HW: not on the flood risk listTS21 1HX: not on the flood risk listTS21 1HY: not on the flood risk listTS21 1JD: not on the flood risk listTS21 1JE: not on the flood risk listTS21 1JF: not on the flood risk listTS21 1JG: not on the flood risk listTS21 1JH: not on the flood risk listTS21 1JJ: not on the flood risk listTS21 1JL: not on the flood risk listTS21 1JN: not on the flood risk listTS21 1JU: not on the flood risk listTS21 1LD: not on the flood risk listTS21 1LE: not on the flood risk listTS21 1LG: not on the flood risk listTS21 1LL: not on the flood risk listTS21 1LN: not on the flood risk listTS21 1LR: not on the flood risk listTS21 1LS: not on the flood risk listTS21 1LT: not on the flood risk listTS21 1LU: not on the flood risk listTS21 1LW: not on the flood risk listTS21 1LY: not on the flood risk listTS21 1LZ: not on the flood risk listTS21 1NA: not on the flood risk listTS21 1NB: not on the flood risk listTS21 1ND: not on the flood risk listTS21 1NE: not on the flood risk listTS21 1NF: not on the flood risk listTS21 1NG: not on the flood risk listTS21 1NH: not on the flood risk listTS21 1NJ: not on the flood risk listTS21 1NL: not on the flood risk listTS21 1NQ: not on the flood risk listTS21 1NR: not on the flood risk listTS21 1NS: not on the flood risk listTS21 1NT: not on the flood risk listTS21 1NU: not on the flood risk listTS21 1NW: not on the flood risk listTS21 1NY: not on the flood risk listTS21 1PA: not on the flood risk listTS21 1PB: not on the flood risk listTS21 1PD: not on the flood risk listTS21 1PE: not on the flood risk listTS21 1PH: not on the flood risk listTS21 1PJ: not on the flood risk listTS21 1PL: not on the flood risk listTS21 1PN: not on the flood risk listTS21 1PP: not on the flood risk listTS21 1PQ: not on the flood risk listTS21 1PR: not on the flood risk listTS21 1PU: not on the flood risk listTS21 1PX: not on the flood risk listTS21 1PZ: not on the flood risk listTS21 1QH: not on the flood risk listTS21 1QN: not on the flood risk listTS21 1QP: not on the flood risk listTS21 1QQ: not on the flood risk listTS21 1XZ: not on the flood risk listTS21 1DT: low flood risk at worstTS21 1LH: low flood risk at worstTS21 1PY: low flood risk at worstTS21 1QB: low flood risk at worstTS21 1QE: low flood risk at worstTS21 1BT: medium flood risk at worstTS21 1ED: medium flood risk at worstTS21 1HE: high flood riskTS21 1HJ: high flood riskTS21 1LJ: high flood riskTS21 1LX: high flood risk Stockton-on-Tees Map of every postcode in the TS21 1 sector, by flood risk Of the 203 postcodes in the TS21 1 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 192 are not on the Environment Agency's at-risk list. Places named: Stockton-on-Tees. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Stockton-on-Tees
  • A home or business at high risk: 4
  • At medium risk at worst: 2
  • At low risk at worst: 5
  • At very low risk only: 0
  • Not on the at-risk list: 192

Of the 203 postcodes in the TS21 1 sector that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 5 are at low risk at worst and 192 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.

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.

TS21 1HE2 at high riskTS21 1HJ1 at high riskTS21 1LJ1 at high riskTS21 1LX1 at high risk

What do homes sell for in TS21 1?

Homes in TS21 1 sold for a typical £260,000 in the 12 months to August 2026, across 71 sales, up 15.6% on the 12 months before, HM Land Registry's figures show.

£260,000 typical price, the 12 months to August 2026
£224,995 12 months to August 2025
▲ up 15.6% on the 12 months before
  • Detached £308,498 44 sales
  • Semi-detached £186,000 16 sales
  • Terraced £175,702 11 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 TS21 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 TS21 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.

TS21 1AATS21 1ABTS21 1ADTS21 1AETS21 1AFTS21 1AGTS21 1AHTS21 1AJTS21 1ANTS21 1ARTS21 1ATTS21 1AUTS21 1AWTS21 1AXTS21 1AYTS21 1AZTS21 1BATS21 1BBTS21 1BDTS21 1BETS21 1BFTS21 1BGTS21 1BHTS21 1BJTS21 1BLTS21 1BNTS21 1BQTS21 1BSTS21 1BTTS21 1BUTS21 1BWTS21 1BXTS21 1BYTS21 1BZTS21 1DATS21 1DBTS21 1DDTS21 1DETS21 1DFTS21 1DGTS21 1DHTS21 1DJTS21 1DLTS21 1DNTS21 1DPTS21 1DQTS21 1DRTS21 1DSTS21 1DTTS21 1DUTS21 1DWTS21 1DXTS21 1DYTS21 1DZTS21 1EATS21 1EBTS21 1EDTS21 1EETS21 1EGTS21 1EHTS21 1EJTS21 1ELTS21 1ENTS21 1EPTS21 1EQTS21 1ERTS21 1ESTS21 1ETTS21 1EUTS21 1EWTS21 1EXTS21 1EYTS21 1EZTS21 1FATS21 1FBTS21 1FDTS21 1FETS21 1FFTS21 1FGTS21 1FHTS21 1FJTS21 1FLTS21 1FNTS21 1FPTS21 1FQTS21 1FRTS21 1FSTS21 1FTTS21 1FUTS21 1FXTS21 1FYTS21 1FZTS21 1GATS21 1GBTS21 1GGTS21 1GHTS21 1GJTS21 1GLTS21 1GNTS21 1GPTS21 1GSTS21 1GTTS21 1GUTS21 1GWTS21 1GXTS21 1HATS21 1HBTS21 1HDTS21 1HETS21 1HFTS21 1HGTS21 1HHTS21 1HJTS21 1HLTS21 1HNTS21 1HPTS21 1HQTS21 1HRTS21 1HSTS21 1HTTS21 1HUTS21 1HWTS21 1HXTS21 1HYTS21 1JDTS21 1JETS21 1JFTS21 1JGTS21 1JHTS21 1JJTS21 1JLTS21 1JNTS21 1JQTS21 1JRTS21 1JSTS21 1JUTS21 1JXTS21 1JYTS21 1LBTS21 1LDTS21 1LETS21 1LFTS21 1LGTS21 1LHTS21 1LJTS21 1LLTS21 1LNTS21 1LPTS21 1LQTS21 1LRTS21 1LSTS21 1LTTS21 1LUTS21 1LWTS21 1LXTS21 1LYTS21 1LZTS21 1NATS21 1NBTS21 1NDTS21 1NETS21 1NFTS21 1NGTS21 1NHTS21 1NJTS21 1NLTS21 1NNTS21 1NPTS21 1NQTS21 1NRTS21 1NSTS21 1NTTS21 1NUTS21 1NWTS21 1NXTS21 1NYTS21 1PATS21 1PBTS21 1PDTS21 1PETS21 1PHTS21 1PJTS21 1PLTS21 1PNTS21 1PPTS21 1PQTS21 1PRTS21 1PUTS21 1PWTS21 1PXTS21 1PYTS21 1PZTS21 1QATS21 1QBTS21 1QDTS21 1QETS21 1QHTS21 1QNTS21 1QPTS21 1QQTS21 1QUTS21 1QWTS21 1XZ

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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