DN21 postcode area guide — Bassetlaw
House prices, crime, broadband speeds, mobile signal, schools and demographics for the DN21 postcode district in Bassetlaw — every official dataset on one page.
Check any UK postcode
Where is DN21?
Broadband & internet speeds in DN21
Strong coverage
Superfast (30Mb+)
82.7%
Ultrafast (300Mb+)
62.9%
Gigabit-capable
61.7%
Below USO (10Mb)
0.9%
Broadband availability in the DN21 postcode district (Bassetlaw) is Strong — superfast is near-universal and gigabit is rolling out. Across the 1,336 postcodes Ofcom measures in DN21, superfast broadband (30 Mbit/s or faster) reaches 82.7% of premises and gigabit-capable lines are available to 61.7%.
Around 0.9% of premises in DN21 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in DN21
| Postcode | Superfast | Gigabit |
|---|---|---|
| DN21 1AA | 100% | 100% |
| DN21 1AB | 100% | 100% |
| DN21 1AD | 100% | 90% |
| DN21 1AF | 93.3% | 53.3% |
| DN21 1AH | 87.5% | 0% |
| DN21 1AJ | 100% | 25% |
| DN21 1AL | 100% | 100% |
| DN21 1AN | 100% | 100% |
| DN21 1AP | 100% | 65% |
| DN21 1AQ | 100% | 100% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Bassetlaw
Ofcom's coverage model for the wider Bassetlaw district (61,343 premises):
4G indoors — all networks
83.2%
4G outdoors — all networks
99.7%
5G outdoors — all networks
41%
Voice indoors — all networks
87.5%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
House prices in DN21
Based on 514 sales registered with HM Land Registry in the last 12 months, the median sold price in DN21 is £165,000, essentially flat on the previous year (£164,995).
Detached
£261,000
175 sales
Semi-detached
£158,000
135 sales
Terraced
£100,000
165 sales
Flat / maisonette
£69,995
17 sales
Latest recorded sales in DN21
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 26 May 2026 | £330,000 | Detached | Millstone Close | DN21 4FH |
| 22 May 2026 | £140,000 | Semi-detached | Copper Beech Close | DN21 1AQ |
| 22 May 2026 | £230,000 | Detached | Southlands Drive | DN21 3EZ |
| 22 May 2026 | £52,000 | Terraced | Lewis Street | DN21 2AB |
| 22 May 2026 | £45,000 | Terraced | Ashcroft Road | DN21 1LD |
| 20 May 2026 | £55,000 | Semi-detached | Garfield Street | DN21 2LA |
| 19 May 2026 | £209,000 | Detached | Old Showfields | DN21 2QE |
| 15 May 2026 | £158,000 | Semi-detached | The Holt | DN21 1WG |
| 15 May 2026 | £127,000 | Semi-detached | Sandsfield Lane | DN21 1DD |
| 15 May 2026 | £68,000 | Flat | Bridge Street | DN21 1JA |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Bassetlaw demographics
Census 2021 figures for the wider Bassetlaw district (117,805 residents, 51,458 households):
| Age profile | |
|---|---|
| Under 15 | 17.4% |
| 15–29 | 20.7% |
| 30–44 | 17.7% |
| 45–64 | 22.1% |
| 65+ | 22.1% |
| Housing tenure | |
|---|---|
| Owner-occupied | 68.2% |
| Private rented | 16.4% |
| Social rented | 3.1% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around DN21
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| The Queen Elizabeth's High School, Gainsborough | Secondary | 11–18 | 1,139 | DN21 2ST |
| The Gainsborough Academy | Secondary | 11–16 | 767 | DN21 1PB |
| Kirton Academy | Secondary | 11–16 | 406 | DN21 4NN |
| Castle Wood Academy | Primary | 4–11 | 272 | DN21 1EH |
| The Gainsborough Parish Church Primary School | Primary | 4–11 | 255 | DN21 2LN |
| Scotter Primary School | Primary | 4–11 | 247 | DN21 3RY |
| Benjamin Adlard Primary School | Primary | 3–11 | 234 | DN21 1DB |
| The Gainsborough Hillcrest Early Years Academy | Primary | 0–7 | 231 | DN21 1SW |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in DN21
40 rated food businesses operate in DN21. 28 hold the top rating of 5, 5 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Angies, Bouncy Land, Cleatham Farm Shop, Cleatham Hall Hotel, Co-op Kirton.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in DN21
From a sample of 175 Energy Performance Certificates across 12 DN21 postcodes, the most common rating is band D (average band D). 43% of sampled homes are rated C or better.
Band A
1%
Band B
3%
Band C
39%
Band D
41%
Band E
13%
Band F
3%
Band G
1%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Bassetlaw
Landlines around DN21 typically use:
Had a call from an unknown number? Use our free UK phone number checker to see who called.
What's it like living in DN21?
Be the first to rate DN21 (Bassetlaw).
How would you rate living in DN21 (Bassetlaw)?
Moving to DN21? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Bassetlaw — free, no-obligation quote.
Postcodes in DN21
Neighbouring districts
All Doncaster (DN) postcode districts ›
Frequently asked questions
Where is the DN21 postcode?
How much do houses cost in DN21?
What broadband can I get in DN21?
Who lives in DN21?
How energy efficient are homes in DN21?
Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.