SN16 postcode

Broadband in SN16 9DZ

Charlton, Wiltshire

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 14 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Sage MitchellData last verified: 14 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 SN16 9DZ. 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 SN16 9DZ.

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)30%
30%
10-20 Mbps
Superfast (30+ Mbps)30%
30%
30-80 Mbps
Ultrafast (100+ Mbps)30%
30%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit30%
30%
900-1,000 Mbps

Speed Distribution at SN16 9DZ

10–30 Mbps (60%)
300+ Mbps (30%)

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 Wiltshire

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 SN16 9DZ

SN16 9DZ sits in Charlton, part of Wiltshire. 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 30%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 30% of properties. Fewer than half of homes here can get ultrafast speeds. Gigabit-capable connections cover 30% of premises. Gigabit is available but not yet widespread at this postcode.

Here is how broadband speeds break down across premises at SN16 9DZ. 60% of connections fall in the 10 to 30 Mbps range. 30% 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. 30% of premises can hit 300 Mbps or more. That is enough for demanding multi-device households.

What do the broadband speeds at SN16 9DZ mean in practice? Superfast coverage is limited here. Streaming HD video should work on one device. Multiple simultaneous streams may struggle during peak hours.

80% of properties at SN16 9DZ can get Fixed Wireless Access broadband. This can be a useful alternative where fibre rollout is incomplete. FWA coverage is strong here. Providers like Three and EE offer home broadband over their mobile networks.

0% of premises at SN16 9DZ 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 90% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at SN16 9DZ 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.

Outdoor 4G mobile signal at SN16 9DZ is available across 95% of the area. 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. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.

Suitability scores for SN16 9DZ: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for SN16 9DZ is Wiltshire. The immediate area is Charlton, a distinct community within the wider district. The SN16 postcode area contains 513 postcodes on this site. Superfast broadband across SN16 ranges from 0% to 100%. SN16 9DZ is below the area average of 94%.

When choosing a broadband provider at SN16 9DZ, 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.

Every part of Charlton 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 SN16 9DZ? Wiltshire 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. Charlton 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.

Numbers tell part of the story for SN16 9DZ. Visit at different times of day. Talk to neighbours. Check mobile signal indoors. Walk the route to the nearest school or station. Test the broadband speed from inside the property. These things do not show up in data.

SN16 9DZ in Charlton: 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 SN16 9DZ

What are the broadband speeds available at SN16 9DZ?

Superfast broadband (30 Mbps+) is available to 30% of premises at SN16 9DZ. Ultrafast coverage is at 30%.

What is the average house price near SN16 9DZ?

No recent house price data is available for SN16 9DZ.

What is the flood risk for properties at SN16 9DZ?

SN16 9DZ has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SN16 9DZ area?

School data for SN16 9DZ is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SN16 9DZ compare to other areas?

Crime data for this area is being updated.

How suitable is SN16 9DZ for remote working?

SN16 9DZ scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SN16 9DZ?

4G outdoor coverage at SN16 9DZ is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SN16 9DZ?

EPC data for SN16 9DZ is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SN16 9DZ?

Council tax band information for SN16 9DZ is being updated.

How accessible are GP surgeries near SN16 9DZ?

GP surgery data for SN16 9DZ is being updated. Check NHS.uk for the latest.

What transport links are available near SN16 9DZ?

Transport data for SN16 9DZ is being updated.

Is SN16 9DZ a suitable area for families?

SN16 9DZ scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SN16 9DZ?

Air quality data for SN16 9DZ is being updated.

How far is the nearest EV charging point from SN16 9DZ?

EV charging data for SN16 9DZ is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SN16 9DZ?

Ultrafast broadband (100 Mbps+) reaches 30% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

SN16 9DZ

Remote Worker

35

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

Charlton

District

Wiltshire

Region

Constituency

LSOA

E01031894

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