DN21 1JL

Gainsborough South-West · West Lindsey · England

Updated September 2026

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Location overview

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Post town
Gainsborough
Local authority
West Lindsey
Constituency
Gainsborough
Postcode district
DN21
Postcode sector
DN21 1

Nearby postcodes

Nearby postcode distances
Postcode Distance
DN21 1JQ 38 m
DN21 1JR 39 m
DN21 1JN 58 m
DN21 1JD 77 m
DN21 1JH 77 m
Complete postcode fields and official codes
Postcode
DN21 1JL
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
DN
Postcode district
DN21
Postcode sector
DN21 1
Latitude
53.394243
Longitude
-0.773700
British National Grid easting
481,644
British National Grid northing
389,299

Statistical and administrative geographies

Country
England · E92000001
Region
East Midlands · E12000004
Local authority district
West Lindsey · E07000142
Parish or community
E04006081
Westminster constituency
Gainsborough · E14001243
Output area
E00134033
Lower layer super output area
West Lindsey 004E · E01026383
Middle layer super output area
West Lindsey 004 · E02005495

Postcode source versions

Explore DN21

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
115 recorded sales at this postcode
Address Date Price
19, Clinton Terrace, Gainsborough, DN21 1JL 25 March 2026 £55,000
32, Clinton Terrace, Gainsborough, DN21 1JL 2 February 2026 £54,000
14, Clinton Terrace, Gainsborough, DN21 1JL 7 November 2025 £65,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
19
Primary
11
Secondary
2
  1. Benjamin Adlard Primary School

    Academy converter

    648 m
  2. Warren Wood - A Specialist Academy

    Academy special converter

    760 m
  3. The Gainsborough Parish Church Primary School

    Academy converter

    950 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
3,289
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 1,193
  • Anti social behaviour 553
  • Shoplifting 462
  • Criminal damage and arson 365
  • Public order 163

Census 2021

Population and age profile

Postcode residents
51

20 female, 31 male

Postcode households
32
Residents per household
1.6
DN21 1 residents
13,465

Age bands in DN21 1

Wider postcode sector
Age 0 to 14
20.3%

2,703 residents

Age 15 to 24
11.4%

1,526 residents

Age 25 to 44
26.1%

3,487 residents

Age 45 to 64
24.9%

3,318 residents

Age 65 and over
17.3%

2,306 residents

This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider DN21 1 sector, not people in this individual postcode.

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
41%
Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

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

NHS ODS

GP practices

2

within 5 km

  • CASKGATE STREET SURGERY

    ELSWITHA HALL, 3 CASKGATE STREET, GAINSBOROUGH, DN21 2DJ

    ODS code C83044

    611 m

  • CLEVELAND SURGERY

    VANESSA DRIVE, GAINSBOROUGH, DN21 2UQ

    ODS code C83018

    2.0 km

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Portland Terrace

    BCT · Gainsborough

    0.1 miles
  • Trinity Arts Centre

    BCT · Gainsborough

    0.1 miles
  • King Street

    BCT · Gainsborough

    0.1 miles
  • King Street

    BCT · Gainsborough

    0.1 miles
  • St Johns Church

    BCT · Gainsborough

    0.1 miles

Relative deprivation

English Indices of Deprivation 2025 for West Lindsey 004E, 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

1 of 10

Overall England rank

26 of 33,755

Income
1 of 10
Employment
1 of 10
Education and skills
1 of 10
Health and disability
1 of 10
Crime
1 of 10
Housing and services
5 of 10
Living environment
1 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
29
Medium risk addresses
4
Low risk addresses
6
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

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £49,500 from 10 recorded sales in DN21 1JL. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for West Lindsey is £210,732 in June 2026, up 8.9% year on year.

Schools

Published establishments

19 open schools are in scope, including 11 primary and 2 secondary schools. Benjamin Adlard Primary School is the nearest published school at 648 m.

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

Recorded crime

Published police records

3,289 published events cover 12 months, averaging 274.083 events per published month. The largest recorded category is Violence and sexual offences with 1,193 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.