SP4 postcode

Broadband in SP4 0JN

Idmiston, Wiltshire

Standard broadband is the main option at this postcode.

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Free, independent comparison · Ofcom verified data · Updated 17 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Data pending

Reviewed by Arthur TuringData last verified: 17 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

Your household needs approximately 14 Mbps. We don't have speed data for SP4 0JN yet.

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Speed Test

Check your current download speed and see how it compares to what is available at SP4 0JN.

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)0%
0%
10-20 Mbps
Superfast (30+ Mbps)0%
0%
30-80 Mbps
Ultrafast (100+ Mbps)0%
0%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit0%
0%
900-1,000 Mbps

Speed Distribution at SP4 0JN

5–10 Mbps (5%)
10–30 Mbps (95%)

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 SP4 0JN

SP4 0JN sits in Idmiston, 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 broadband (30 Mbps+) coverage at SP4 0JN stands at 0%. That is below the UK average of 93%.

Here is how broadband speeds break down across premises at SP4 0JN. 5.3% of connections fall in the 5 to 10 Mbps range. 94.7% of connections fall in the 10 to 30 Mbps range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls.

What do the broadband speeds at SP4 0JN mean in practice? With no superfast coverage, streaming is limited. Standard definition video may work, but HD and 4K are unlikely to run smoothly. Downloading large files will take significantly longer than average. Limited superfast coverage means remote workers should test their connection carefully. Video calls may drop or pixelate. A mobile hotspot can serve as a backup.

Fixed Wireless Access is not currently available at SP4 0JN. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

The USO guarantees every UK home at least 10 Mbps. At SP4 0JN, 0% of properties do not meet this threshold. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 94.7% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at SP4 0JN 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 SP4 0JN 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 SP4 0JN: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

SP4 0JN falls within the Wiltshire local authority area. The immediate area is Idmiston, a distinct community within the wider district. The SP4 postcode area contains 1082 postcodes on this site. Superfast broadband across SP4 ranges from 0% to 100%.

Not every property at SP4 0JN 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.

Life in Idmiston depends on what matters to you. Broadband, transport, and local services vary by street.

Looking at the overall picture for SP4 0JN, a few things are worth highlighting. Broadband is the main concern at SP4 0JN. With no superfast coverage, check what alternatives exist before committing. 4G home broadband, satellite, or community fibre schemes may fill the gap. 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. Idmiston 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.

Data is a starting point for Idmiston. Walk the streets at different times. Test your mobile signal. Check parking, noise levels, and the feel of the neighbourhood. Run a speed test on the actual connection. Some things only a visit can reveal.

This covers the key data for SP4 0JN. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Idmiston hub page. Bookmark this page and check back as new data arrives.

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 SP4 0JN

What are the broadband speeds available at SP4 0JN?

Broadband is available at SP4 0JN. Contact local providers for specific speed information.

What is the average house price near SP4 0JN?

No recent house price data is available for SP4 0JN.

What is the flood risk for properties at SP4 0JN?

SP4 0JN has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the SP4 0JN area?

School data for SP4 0JN is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in SP4 0JN compare to other areas?

Crime data for this area is being updated.

How suitable is SP4 0JN for remote working?

SP4 0JN scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at SP4 0JN?

4G outdoor coverage at SP4 0JN is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near SP4 0JN?

EPC data for SP4 0JN is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at SP4 0JN?

Council tax band information for SP4 0JN is being updated.

How accessible are GP surgeries near SP4 0JN?

GP surgery data for SP4 0JN is being updated. Check NHS.uk for the latest.

What transport links are available near SP4 0JN?

Transport data for SP4 0JN is being updated.

Is SP4 0JN a suitable area for families?

SP4 0JN scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at SP4 0JN?

Air quality data for SP4 0JN is being updated.

How far is the nearest EV charging point from SP4 0JN?

EV charging data for SP4 0JN is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at SP4 0JN?

Full fibre availability at SP4 0JN is being updated. Check Openreach for the latest rollout status.

Area suitability scores

SP4 0JN

Remote Worker

50

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

Idmiston

District

Wiltshire

Region

Constituency

LSOA

E01032033

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