TS21 1NL

Sedgefield · County Durham · England

Updated September 2026

Compare this postcode

Location overview

Drag to pan. Use + or - to zoom. Open larger map
Local authority
County Durham
Postcode district
TS21
Postcode sector
TS21 1

Nearby postcodes

Nearby postcode distances
Postcode Distance
TS21 1NJ 665 m
TS21 1NH 1.3 km
TS21 1LZ 1.3 km
TS21 1LX 1.5 km
TS21 1LY 1.6 km
Complete postcode fields and official codes
Postcode
TS21 1NL
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
TS
Postcode district
TS21
Postcode sector
TS21 1
Latitude
54.606156
Longitude
-1.457493
British National Grid easting
435,142
British National Grid northing
523,577

Statistical and administrative geographies

Country
England · E92000001
Region
North East · E12000001
Local authority district
County Durham · E06000047
Parish or community
E04010667
Output area
E00105700
Lower layer super output area
County Durham 054B · E01020828
Middle layer super output area
County Durham 054 · E02004339

Postcode source versions

Explore TS21

1 recorded sale at this postcode
Address Date Price
Oaklea, Stillington, Stockton-On-Tees, TS21 1NL 27 April 2018 £395,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
2
Primary
2
Secondary
0
  1. Bishopton Redmarshall CofE Primary School

    Academy converter

    2.7 km
  2. William Cassidi Church of England Aided Primary School

    Voluntary aided school

    2.7 km

Census 2021

Population and age profile

Postcode residents
13

7 female, 6 male

Postcode households
3
Residents per household
4.3
TS21 1 residents
4,293

Age bands in TS21 1

Wider postcode sector
Age 0 to 14
15.5%

655 residents

Age 15 to 24
9.3%

394 residents

Age 25 to 44
20%

846 residents

Age 45 to 64
32.7%

1,382 residents

Age 65 and over
22.3%

943 residents

This postcode contained 0.3% of the sector's usual residents on Census Day. The age profile describes the wider TS21 1 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

Superfast, 30 Mbit/s+
0%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
Unable to receive decent fixed or FWA broadband
66.7%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

1

within 5 km

  • PARK LANE SURGERY

    REDMARSHALL STREET, STILLINGTON, STOCKTON-ON-TEES, TS21 1JS

    ODS code A81066

    2.1 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Merton Grange

    BCT · Mordon

    0.5 miles
  • Merton Grange

    BCT · Mordon

    0.5 miles
  • Old Stillington

    BCT · Old Stillington

    0.9 miles
  • Old Stillington

    BCT · Old Stillington

    0.9 miles
  • Howe Hills Farm

    BCT · Mordon

    1.1 miles

Relative deprivation

English Indices of Deprivation 2025 for County Durham 054B, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.

Overall IMD decile

8 of 10

Overall England rank

23,880 of 33,755

Income
8 of 10
Employment
8 of 10
Education and skills
9 of 10
Health and disability
6 of 10
Crime
6 of 10
Housing and services
3 of 10
Living environment
5 of 10

These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.

Flood risk

Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.

High risk addresses
0
Medium risk addresses
0
Low risk addresses
0
Groundwater flood alert area
Unlikely

Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.

Evidence in context

Schools

2 open schools are in scope, including 2 primary and 0 secondary schools. Bishopton Redmarshall CofE Primary School is the nearest published school at 1.7 miles.

Counts describe active establishment records. They do not assess admissions, catchments or quality.