DN21
Postcode districtPostcode district covering Gainsborough and Park Springs, in West Lindsey and North Lincolnshire.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an DN21 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 42% of people in DN21 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How DN21 compares
Each dot is a postcode district. The black line marks the middle one.
Is DN21 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in DN21 at a rate of 120.6 per 1,000 people.
That compares with 116.1 per 1,000 people across the DN postcode area.
In August 2026 alone, 381 cases of crime and anti-social behaviour were recorded in DN21.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,791), anti-social behaviour (1,030) and other crime (669).
A year earlier, the recorded crime rate in DN21 was 126.3 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in DN21, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so DN21 has no single figure. Of its 21 neighbourhoods with a rank:
- Decile 1 (England’s most deprived 10%): 6 neighbourhoods
- Decile 2: 3 neighbourhoods
- Decile 3: 2 neighbourhoods
- Decile 4: 2 neighbourhoods
- Decile 5: 3 neighbourhoods
- Decile 6: 2 neighbourhoods
- Decile 7: 1 neighbourhood
- Decile 8: 2 neighbourhoods
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in DN21
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| North Lincolnshire 022A | 2,139 | 39.2 per 1,000 | 6 | 95.1% |
| North Lincolnshire 022B | 1,562 | 29.7 per 1,000 | 5 | 93.3% |
| West Lindsey 002A | 2,559 | 86.4 per 1,000 | 6 | 86.1% |
| West Lindsey 002B | 1,611 | 54.7 per 1,000 | 8 | 64.2% |
| West Lindsey 002C | 1,873 | 44.5 per 1,000 | 8 | 97.3% |
| West Lindsey 002D | 1,354 | 57.2 per 1,000 | 5 | 7.8% |
| West Lindsey 002E | 1,370 | 53.3 per 1,000 | 4 | 11.0% |
| West Lindsey 002F | 1,372 | 60.0 per 1,000 | 5 | 95.6% |
| West Lindsey 004A | 1,726 | 131.2 per 1,000 | 1 | 99.9% |
| West Lindsey 004B | 1,839 | 103.5 per 1,000 | 3 | 97.9% |
| West Lindsey 004C | 1,721 | 112.1 per 1,000 | 2 | 97.7% |
| West Lindsey 004D | 1,773 | 199.1 per 1,000 | 2 | 96.0% |
| West Lindsey 004E | 1,298 | 301.0 per 1,000 | 1 | 96.1% |
| West Lindsey 004F | 2,143 | 553.8 per 1,000 | 1 | 86.2% |
| West Lindsey 005A | 1,076 | 44.1 per 1,000 | 4 | 74.2% |
| West Lindsey 005B | 1,243 | 100.5 per 1,000 | 2 | 28.2% |
| West Lindsey 006A | 1,527 | 106.7 per 1,000 | 1 | 98.0% |
| West Lindsey 006B | 2,048 | 125.2 per 1,000 | 1 | 88.5% |
| West Lindsey 006C | 1,692 | 181.8 per 1,000 | 1 | 98.1% |
| West Lindsey 006D | 2,210 | 106.7 per 1,000 | 3 | 99.8% |
| West Lindsey 007A | 2,116 | 37.6 per 1,000 | 7 | 83.6% |
MPs for DN21
- Sir Edward LeighConservativeMP for Gainsborough89% of DN21’s postcodes
- Sir Nicholas DakinLabourMP for Scunthorpe11% of DN21’s postcodes
- Jo WhiteLabourMP for Bassetlaw0.3% of DN21’s postcodes
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in DN214
Postcode sectors in DN216
Councils DN21 covers2
Towns in DN211
Postcode districts next to DN216
More in the DN postcode area2
DN21 in brief
DN21 is a postcode district covering Gainsborough and Park Springs, in West Lindsey and North Lincolnshire.
About 40,244 people lived in DN21 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £177,000 in 2025 across 657 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 120.6 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in DN21 was £177,000 in 2025.
DN21 had 39,036 usual residents at the census.
About 42% of people in DN21 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In DN21, 80.5% of homes and businesses could get gigabit-capable broadband in January 2026.