TS21 postcode district: Sedgefield and around

TS21 is a postcode district in England, with 545 postcodes in use in 4 sectors. It has postcodes in Sedgefield, Fishburn and Stockton-on-Tees. It is split between 3 councils: County Durham (303 postcodes), Stockton-on-Tees (208) and Darlington (34).

Postcodes in use
545
Sectors
4
Councils
3 councils
Places
3 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in TS21, by flood risk

Map of every postcode in TS21, by flood risk Of the 545 postcodes in TS21 that ONS places, 4 have a home or business at high risk, 3 are at medium risk at worst, 8 are at low risk at worst and 530 are not on the Environment Agency's at-risk list. Places named: Sedgefield, Stockton-on-Tees, Thornaby-on-Tees, Wynyard, Fishburn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1(M)A19A1150A1027 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 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 1DH: not on the flood risk listTS21 1DJ: 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 1DX: not on the flood risk listTS21 1DY: not on the flood risk listTS21 1DZ: 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 1EH: 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 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 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 1FZ: not on the flood risk listTS21 1GA: not on the flood risk listTS21 1GB: not on the flood risk listTS21 1GH: not on the flood risk listTS21 1GL: not on the flood risk listTS21 1GN: not on the flood risk listTS21 1GS: not on the flood risk listTS21 1GW: not on the flood risk listTS21 1HA: not on the flood risk listTS21 1HB: not on the flood risk listTS21 1HD: 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 1HY: not on the flood risk listTS21 1JD: 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 1JN: not on the flood risk listTS21 1JQ: not on the flood risk listTS21 1JY: not on the flood risk listTS21 1LB: 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 1LP: not on the flood risk listTS21 1LQ: not on the flood risk listTS21 1LR: 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 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 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 1PH: not on the flood risk listTS21 1PJ: not on the flood risk listTS21 1PN: not on the flood risk listTS21 1PP: not on the flood risk listTS21 1PR: not on the flood risk listTS21 1PU: 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 1XZ: not on the flood risk listTS21 2AA: not on the flood risk listTS21 2AE: not on the flood risk listTS21 2AF: not on the flood risk listTS21 2AG: not on the flood risk listTS21 2AJ: not on the flood risk listTS21 2AL: not on the flood risk listTS21 2AN: not on the flood risk listTS21 2AP: not on the flood risk listTS21 2AS: not on the flood risk listTS21 2AT: not on the flood risk listTS21 2AU: not on the flood risk listTS21 2AW: not on the flood risk listTS21 2AY: not on the flood risk listTS21 2AZ: not on the flood risk listTS21 2BB: not on the flood risk listTS21 2BD: not on the flood risk listTS21 2BF: not on the flood risk listTS21 2BG: not on the flood risk listTS21 2BH: not on the flood risk listTS21 2BJ: not on the flood risk listTS21 2BP: not on the flood risk listTS21 2BQ: not on the flood risk listTS21 2BS: not on the flood risk listTS21 2BU: not on the flood risk listTS21 2BY: not on the flood risk listTS21 2BZ: not on the flood risk listTS21 2DA: not on the flood risk listTS21 2DE: not on the flood risk listTS21 2DH: not on the flood risk listTS21 2DJ: not on the flood risk listTS21 2DN: not on the flood risk listTS21 2DP: not on the flood risk listTS21 2DQ: not on the flood risk listTS21 2DS: not on the flood risk listTS21 2DX: not on the flood risk listTS21 2EA: not on the flood risk listTS21 2EB: not on the flood risk listTS21 2EG: not on the flood risk listTS21 2EH: not on the flood risk listTS21 2EJ: not on the flood risk listTS21 2EL: not on the flood risk listTS21 2EN: not on the flood risk listTS21 2EP: not on the flood risk listTS21 2EQ: not on the flood risk listTS21 2ES: not on the flood risk listTS21 2ET: not on the flood risk listTS21 2EW: not on the flood risk listTS21 2EX: not on the flood risk listTS21 2EY: not on the flood risk listTS21 2HA: not on the flood risk listTS21 2HB: not on the flood risk listTS21 2HD: not on the flood risk listTS21 2HE: not on the flood risk listTS21 2HF: not on the flood risk listTS21 2HG: not on the flood risk listTS21 2HL: not on the flood risk listTS21 2HN: not on the flood risk listTS21 2HQ: not on the flood risk listTS21 2HR: not on the flood risk listTS21 2HS: not on the flood risk listTS21 2HT: not on the flood risk listTS21 2HU: not on the flood risk listTS21 2HW: not on the flood risk listTS21 2HX: not on the flood risk listTS21 2HY: not on the flood risk listTS21 2HZ: not on the flood risk listTS21 2JA: not on the flood risk listTS21 2JD: not on the flood risk listTS21 2JE: not on the flood risk listTS21 2JF: not on the flood risk listTS21 2JG: not on the flood risk listTS21 2JH: not on the flood risk listTS21 2JJ: not on the flood risk listTS21 2JL: not on the flood risk listTS21 2JN: not on the flood risk listTS21 2JP: not on the flood risk listTS21 2JR: not on the flood risk listTS21 2JS: not on the flood risk listTS21 2JT: not on the flood risk listTS21 2JU: not on the flood risk listTS21 2JX: not on the flood risk listTS21 2JY: not on the flood risk listTS21 3AA: not on the flood risk listTS21 3AB: not on the flood risk listTS21 3AE: not on the flood risk listTS21 3AJ: not on the flood risk listTS21 3AU: not on the flood risk listTS21 3AY: not on the flood risk listTS21 3BB: not on the flood risk listTS21 3BD: not on the flood risk listTS21 3BE: not on the flood risk listTS21 3BF: not on the flood risk listTS21 3BH: not on the flood risk listTS21 3BL: not on the flood risk listTS21 3BP: not on the flood risk listTS21 3BT: not on the flood risk listTS21 3BY: not on the flood risk listTS21 3DA: not on the flood risk listTS21 3DB: not on the flood risk listTS21 3DD: not on the flood risk listTS21 3DG: not on the flood risk listTS21 3DH: not on the flood risk listTS21 3DS: not on the flood risk listTS21 3DT: not on the flood risk listTS21 3DU: not on the flood risk listTS21 3DY: not on the flood risk listTS21 3DZ: not on the flood risk listTS21 3ED: not on the flood risk listTS21 3EE: not on the flood risk listTS21 3EF: not on the flood risk listTS21 3EG: not on the flood risk listTS21 3EL: not on the flood risk listTS21 3EN: not on the flood risk listTS21 3EP: not on the flood risk listTS21 3ER: not on the flood risk listTS21 3ET: not on the flood risk listTS21 3EU: not on the flood risk listTS21 3EW: not on the flood risk listTS21 3FA: not on the flood risk listTS21 3FB: not on the flood risk listTS21 3FE: not on the flood risk listTS21 3FF: not on the flood risk listTS21 3FG: not on the flood risk listTS21 3FH: not on the flood risk listTS21 3FJ: not on the flood risk listTS21 3FL: not on the flood risk listTS21 3FP: not on the flood risk listTS21 3FQ: not on the flood risk listTS21 3FR: not on the flood risk listTS21 3HA: not on the flood risk listTS21 3HD: not on the flood risk listTS21 3HE: not on the flood risk listTS21 3HF: not on the flood risk listTS21 3HG: not on the flood risk listTS21 3HH: not on the flood risk listTS21 3HL: not on the flood risk listTS21 3HN: not on the flood risk listTS21 3HP: not on the flood risk listTS21 3HQ: not on the flood risk listTS21 3HS: not on the flood risk listTS21 3HW: not on the flood risk listTS21 3HX: not on the flood risk listTS21 3HY: not on the flood risk listTS21 3HZ: not on the flood risk listTS21 3JA: not on the flood risk listTS21 3JB: not on the flood risk listTS21 3JE: not on the flood risk listTS21 3JF: not on the flood risk listTS21 3JG: not on the flood risk listTS21 3JH: not on the flood risk listTS21 3JJ: not on the flood risk listTS21 3JL: not on the flood risk listTS21 3JN: not on the flood risk listTS21 3JQ: not on the flood risk listTS21 3JU: not on the flood risk listTS21 3LA: not on the flood risk listTS21 3LD: not on the flood risk listTS21 3LE: not on the flood risk listTS21 3LF: not on the flood risk listTS21 3LQ: not on the flood risk listTS21 3LR: not on the flood risk listTS21 3LT: not on the flood risk listTS21 3LU: not on the flood risk listTS21 3LX: not on the flood risk listTS21 3LZ: not on the flood risk listTS21 3NB: not on the flood risk listTS21 3NH: not on the flood risk listTS21 3NJ: not on the flood risk listTS21 3NL: not on the flood risk listTS21 3NP: not on the flood risk listTS21 3NS: not on the flood risk listTS21 3NX: not on the flood risk listTS21 4AA: not on the flood risk listTS21 4AB: not on the flood risk listTS21 4AD: not on the flood risk listTS21 4AE: not on the flood risk listTS21 4AF: not on the flood risk listTS21 4AJ: not on the flood risk listTS21 4AN: not on the flood risk listTS21 4AP: not on the flood risk listTS21 4AS: not on the flood risk listTS21 4AU: not on the flood risk listTS21 4AW: not on the flood risk listTS21 4AX: not on the flood risk listTS21 4AY: not on the flood risk listTS21 4AZ: not on the flood risk listTS21 4BA: not on the flood risk listTS21 4BB: not on the flood risk listTS21 4BD: not on the flood risk listTS21 4BE: not on the flood risk listTS21 4BG: not on the flood risk listTS21 4BH: not on the flood risk listTS21 4BP: not on the flood risk listTS21 4BQ: not on the flood risk listTS21 4BU: not on the flood risk listTS21 4BY: not on the flood risk listTS21 4DB: not on the flood risk listTS21 4DF: not on the flood risk listTS21 4DJ: not on the flood risk listTS21 4DL: not on the flood risk listTS21 4DN: not on the flood risk listTS21 4DP: not on the flood risk listTS21 4DQ: not on the flood risk listTS21 4DR: not on the flood risk listTS21 4DS: not on the flood risk listTS21 4DZ: not on the flood risk listTS21 4EA: not on the flood risk listTS21 4EB: not on the flood risk listTS21 4EG: not on the flood risk listTS21 4EH: not on the flood risk listTS21 4EJ: not on the flood risk listTS21 4EN: not on the flood risk listTS21 4EY: not on the flood risk listTS21 4FB: not on the flood risk listTS21 4HA: not on the flood risk listTS21 1QE: low flood risk at worstTS21 1DT: low flood risk at worstTS21 1LH: low flood risk at worstTS21 1PY: low flood risk at worstTS21 1QB: low flood risk at worstTS21 3HR: low flood risk at worstTS21 3JR: low flood risk at worstTS21 3LJ: low flood risk at worstTS21 1BT: medium flood risk at worstTS21 1ED: medium flood risk at worstTS21 3LB: medium flood risk at worstTS21 1HE: high flood riskTS21 1HJ: high flood riskTS21 1LJ: high flood riskTS21 1LX: high flood risk SedgefieldStockton-on-TeesThornaby-on-TeesWynyardFishburn Map of every postcode in TS21, by flood risk Of the 545 postcodes in TS21 that ONS places, 4 have a home or business at high risk, 3 are at medium risk at worst, 8 are at low risk at worst and 530 are not on the Environment Agency's at-risk list. Places named: Sedgefield, Stockton-on-Tees, Wynyard, Fishburn. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. SedgefieldStockton-on-TeesWynyardFishburn
  • A home or business at high risk: 4
  • At medium risk at worst: 3
  • At low risk at worst: 8
  • At very low risk only: 0
  • Not on the at-risk list: 530

Of the 545 postcodes in TS21 that ONS places, 4 have a home or business at high risk, 3 are at medium risk at worst, 8 are at low risk at worst and 530 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.

The middle of its postcodes: latitude 54.6256, longitude -1.4264. Open this area on OpenStreetMap

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 broadband can you get in TS21?

Ofcom reports on 529 of the 545 postcodes in TS21. At 170 of them every home and business can get gigabit broadband, and at 18 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit170 of 529
Postcodes where every home can get superfast367 of 529
Postcodes where some cannot get decent broadband18 of 529

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is TS21 at risk of flooding?

15 of the 545 postcodes in TS21 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 12 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 15 of 545 postcodes High: 5Medium: 7Low: 18

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in TS21?

Homes in TS21 sold for a typical £225,000 in the 12 months to August 2026, across 211 sales, up 9.5% on the 12 months before, HM Land Registry's figures show.

£225,000 typical price, the 12 months to August 2026
12 months to August 2025
£205,498
12 months to August 2026
£225,000

▲ up 9.5% on the 12 months before

Detached£306,995 93 sales
Semi-detached£180,750 64 sales
Terraced£150,000 45 sales
Flat or maisonette£74,950 9 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

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

Pick a sector, then a postcode. A sector is the district plus the next digit.

TS21 1203 postcodesTS21 2110 postcodesTS21 3150 postcodesTS21 482 postcodes
UK postcode format explained

Places in TS21

Towns and villages with postcodes in TS21, and how many each has here.

Sedgefield postcodes,155Fishburn postcodes,74Stockton-on-Tees postcodes,7

Who covers TS21

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Newton Aycliffe and Spennymoor303
  • Stockton West193
  • Stockton North49

Police force areas

  • Durham337
  • Cleveland208

Next to TS21

TS20 postcode district TS22 postcode district All TS districts Sedgefield postcodes

"Next to" is by number: the districts before and after TS21 in the TS area.

Check a postcode

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