DN21 postcode

Broadband in DN21 1GH

Gainsborough, West Lindsey

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 8 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Sage MitchellData last verified: 8 March 2026

Speed Calculator

Adjust the options below to see how much broadband speed your household needs.

2
18

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.

Estimated speed needed14 Mbps

Gigabit broadband (Gigabit (1Gbps+)) is available at DN21 1GH. That covers your 14 Mbps needs with room to spare.

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Speed Test

Check your current download speed and see how it compares to what is available at DN21 1GH.

The test downloads a 2 MB file from our server and measures how long it takes.

This test measures download speed only. Results vary depending on network conditions.

Broadband availability

Source: Ofcom Connected Nations 2025 (Jul 2025)

TechnologyAvailableCoverageTypical 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)N/A
N/A
300-900 Mbps
Gigabit100%
100%
900-1,000 Mbps

Speed Distribution at DN21 1GH

100%
300+ Mbps (100%)

Source: Ofcom Connected Nations 2025

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

95%

4G Indoor

85%

5G Outdoor

%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

Schools data is currently unavailable.

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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

Environment Agency

Air quality

Particulate matter & nitrogen dioxide levels

air quality

Air quality data not available.

PM2.5 (fine particles) μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles) μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide) μg/m³

WHO guideline: 25 μg/m³

DEFRA UK-AIR · Guidelines: WHO 2021

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Council tax bands

Band distribution for West Lindsey

Most common: Band

A
5%£1,381
B
10%£1,611
C
20%£1,841
D
25%£2,071
E
20%£2,531
F
10%£2,991
G
8%£3,452
H
2%£4,142

Annual council tax estimates for , 2024/25

VOA (Valuation Office Agency)

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Living near DN21 1GH

DN21 1GH sits in Gainsborough, part of West Lindsey. This guide covers broadband speeds, house prices, schools, and more. Every figure comes from verified public data sources. Use it alongside your own research when comparing areas.

Superfast coverage here stands at 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong. 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 1GH. 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.

What do the broadband speeds at DN21 1GH mean in practice? Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.

FWA broadband has not reached DN21 1GH yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.

0% of premises at DN21 1GH 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 1GH 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 1GH 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 1GH: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

DN21 1GH falls within the West Lindsey local authority area. 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 1GH is above the area average of 83%.

How does DN21 1GH compare to its neighbours? DN21 1GJ (0.03 miles, gainsborough) has 100% superfast coverage and 100% gigabit. DN21 1GF (0.04 miles, gainsborough) has 100% superfast coverage and 100% gigabit. DN21 1GU (0.05 miles, gainsborough) has 100% superfast coverage and 100% gigabit. DN21 1QS (0.06 miles, gainsborough) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.

Not every property at DN21 1GH gets the same speeds. Run a postcode check with each provider before signing up. Headline speeds are not guarantees. 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.

Every part of Gainsborough has its own feel. This data gives you the factual starting point. A visit fills in the rest.

What does all of this mean for someone considering DN21 1GH? Connectivity at DN21 1GH 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 1GH, 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.

That is the full data picture for DN21 1GH in Gainsborough. Use it alongside your own research. For the most current broadband speeds, run a live speed test from this page. Check back periodically as data is refreshed with new releases.

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 1GH

What are the broadband speeds available at DN21 1GH?

Superfast broadband (30 Mbps+) is available to 100% of premises at DN21 1GH. Ultrafast coverage is at 100%.

What is the average house price near DN21 1GH?

No recent house price data is available for DN21 1GH.

What is the flood risk for properties at DN21 1GH?

DN21 1GH has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the DN21 1GH area?

School data for DN21 1GH is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in DN21 1GH compare to other areas?

Crime data for this area is being updated.

How suitable is DN21 1GH for remote working?

DN21 1GH scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at DN21 1GH?

4G outdoor coverage at DN21 1GH is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near DN21 1GH?

EPC data for DN21 1GH is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at DN21 1GH?

Council tax band information for DN21 1GH is being updated.

How accessible are GP surgeries near DN21 1GH?

GP surgery data for DN21 1GH is being updated. Check NHS.uk for the latest.

What transport links are available near DN21 1GH?

Transport data for DN21 1GH is being updated.

Is DN21 1GH a suitable area for families?

DN21 1GH scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at DN21 1GH?

Air quality data for DN21 1GH is being updated.

How far is the nearest EV charging point from DN21 1GH?

EV charging data for DN21 1GH is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at DN21 1GH?

Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

DN21 1GH

Remote Worker

55

Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.

Family

50

Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.

Value for Money

50

Based on broadband quality relative to average house price in the area.

Map

Area info

Parish

Gainsborough

District

West Lindsey

Region

Constituency

LSOA

E01026377

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