DN21 postcode
Broadband in DN21 1NN
Gainsborough, West Lindsey
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 24 March 2026
Flood Risk
Medium
Fibre (FTTP)
No
Best speed
Gigabit (1Gbps+)
Speed Calculator
Adjust the options below to see how much broadband speed your household needs.
HD uses ~5 Mbps per person. 4K uses ~25 Mbps.
Each person on calls needs around 10 Mbps.
Competitive gaming needs low latency as much as raw speed.
Cameras, thermostats, speakers and similar devices each use a few Mbps.
Gigabit broadband (Gigabit (1Gbps+)) is available at DN21 1NN. That covers your 14 Mbps needs with room to spare.
Speed Test
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Broadband availability
Source: Ofcom Connected Nations 2025 (Jul 2025)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 100% | 100% | 10-20 Mbps |
| Superfast (30+ Mbps) | 100% | 100% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 100% | 100% | 100-300 Mbps |
| Full Fibre (FTTP) | 0% | 0% | 300-900 Mbps |
| Gigabit | 100% | 100% | 900-1,000 Mbps |
Speed Distribution at DN21 1NN
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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Flood risk
🟠
Flood risk: Medium
This postcode is in undefined — medium risk of flooding from rivers and sea.
Flood Zone
Risk Level
Medium
Air quality
Particulate matter & nitrogen dioxide levels
air quality
Air quality data not available.
WHO guideline: 15 μg/m³
WHO guideline: 45 μg/m³
WHO guideline: 25 μg/m³
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
Council tax bands
Band distribution for West Lindsey
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near DN21 1NN
Gainsborough is home to DN21 1NN. Whether you live here or plan to move, the data below paints a clear picture. Broadband, schools, crime, house prices, and local services all follow. The numbers speak for themselves.
100% of premises at DN21 1NN can access superfast broadband. The UK average is 93%. This postcode meets or exceeds that benchmark. Ultrafast broadband (100 Mbps+) reaches 100% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 100% of premises. Most homes can access gigabit speeds if they choose to.
Here is how broadband speeds break down across premises at DN21 1NN. 100% of connections fall in the 300 Mbps or faster range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls. Over half of connections exceed 300 Mbps. That supports multiple 4K streams, large file transfers, and cloud gaming without issue.
Translating the numbers at DN21 1NN into daily use gives a clearer picture. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.
Fixed Wireless Access (FWA) is available to 100% of premises at DN21 1NN. FWA uses a fixed antenna to deliver broadband without a phone line or fibre cable. FWA coverage is strong here. Providers like Three and EE offer home broadband over their mobile networks.
0% of premises at DN21 1NN fall below the Universal Service Obligation of 10 Mbps. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 100% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at DN21 1NN is rated Medium. Check Environment Agency flood maps for detailed information. Specialist flood insurance may be needed.
The three most common bands are D (25%), C (20%), E (20%). Band D corresponds to 1991 property values of £68,001 to £88,000. Current values are typically much higher. The spread across mid-range bands suggests a varied housing stock.
4G outdoor coverage at DN21 1NN reaches 95%. Indoor 4G drops to 85%. Some signal loss indoors is normal. Most calls and data should still work inside. Coverage data covers EE, O2, Three, Vodafone. Check each operator individually, as coverage varies by network.
Suitability scores for DN21 1NN: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for DN21 1NN is West Lindsey. The immediate area is Gainsborough, a distinct community within the wider district. The DN21 postcode area contains 1332 postcodes on this site. Superfast broadband across DN21 ranges from 0% to 100%. DN21 1NN is above the area average of 83%.
How does DN21 1NN compare to its neighbours? DN21 1NS (0.01 miles, gainsborough) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.
When choosing a broadband provider at DN21 1NN, check what technology reaches your specific address. Availability varies by street and sometimes by building. If fibre is unavailable, consider 4G home broadband or satellite as alternatives. Speeds may still be adequate for most uses. Compare contract lengths, total costs over the term, and exit fees. The cheapest monthly rate is not always the best deal.
Life in Gainsborough depends on what matters to you. Broadband, transport, and local services vary by street.
Looking at the overall picture for DN21 1NN, a few things are worth highlighting. Connectivity at DN21 1NN is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. West Lindsey as a local authority area has its own planning priorities, council services, and infrastructure investment plans. Check the council website for the latest. The data covers what can be measured. Gainsborough has its own character that numbers alone cannot capture. Use these figures as a filter, then visit to get the full picture.
Data sources include Ofcom (broadband and mobile), Land Registry (house prices), Police.uk (crime), Ofsted (schools), Environment Agency (flood risk), and Open-Meteo (air quality). Council tax data comes from the Valuation Office Agency. EPC data is from DLUHC. Transport data uses NaPTAN. Speed distribution figures are from Ofcom Connected Nations. All figures are the latest available at the time of writing.
Before making a decision about DN21 1NN, visit in person. Check the commute at rush hour. Try the mobile signal indoors. Look at local shops and green spaces. Ask about broadband reliability, not just speed. Data sets the scene, but real life fills in the gaps.
DN21 1NN in Gainsborough: broadband, house prices, crime, schools, and more. All from verified sources. Run a speed test above for a live reading. Compare with nearby postcodes to see how this area stacks up against its neighbours.
More local data is being added for this postcode
This page already has postcode-specific content, and more data-backed sections will appear as the remaining local datasets finish processing.
Frequently asked questions about DN21 1NN
What are the broadband speeds available at DN21 1NN?
Superfast broadband (30 Mbps+) is available to 100% of premises at DN21 1NN. Ultrafast coverage is at 100%.
What is the average house price near DN21 1NN?
No recent house price data is available for DN21 1NN.
What is the flood risk for properties at DN21 1NN?
DN21 1NN has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the DN21 1NN area?
School data for DN21 1NN is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in DN21 1NN compare to other areas?
Crime data for this area is being updated.
How suitable is DN21 1NN for remote working?
DN21 1NN scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at DN21 1NN?
4G outdoor coverage at DN21 1NN is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near DN21 1NN?
EPC data for DN21 1NN is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at DN21 1NN?
Council tax band information for DN21 1NN is being updated.
How accessible are GP surgeries near DN21 1NN?
GP surgery data for DN21 1NN is being updated. Check NHS.uk for the latest.
What transport links are available near DN21 1NN?
Transport data for DN21 1NN is being updated.
Is DN21 1NN a suitable area for families?
DN21 1NN scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at DN21 1NN?
Air quality data for DN21 1NN is being updated.
How far is the nearest EV charging point from DN21 1NN?
EV charging data for DN21 1NN is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at DN21 1NN?
Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
DN21 1NNRemote Worker
55Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.
Family
50Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.
Value for Money
50Based on broadband quality relative to average house price in the area.
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Area info
Parish
Gainsborough
District
West Lindsey
Region
Constituency
LSOA
E01026379
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