SA1 postcode
Broadband in SA1 5JQ
Castle, Swansea
Superfast broadband covers 66.7% of premises here.
Free, independent comparison · Ofcom verified data
Flood Risk
Low
Fibre (FTTP)
No
Best speed
~30 Mbps
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.
The best available speed at SA1 5JQ is ~30 Mbps. That covers your 14 Mbps estimate.
Speed Test
Check your current download speed and see how it compares to what is available at SA1 5JQ.
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)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 67% | 67% | 10-20 Mbps |
| Superfast (30+ Mbps) | 67% | 67% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 0% | 0% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 0% | 0% | 900-1,000 Mbps |
Speed Distribution at SA1 5JQ
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: Low
This postcode is in undefined — low risk of flooding from rivers and sea.
Flood Zone
Risk Level
Low
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 Swansea
Most common: Band
Annual council tax estimates for , 2024/25
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Considering Castle? SA1 5JQ sits in the Swansea area. We've gathered broadband, property, crime, school, and environmental data for this exact postcode. Ookla speed tests, Land Registry prices, Ofcom coverage stats, Police.uk crime figures. All from verified government sources. No estimates, no guesswork. Just the numbers that matter when choosing where to live.
Broadband at SA1 5JQ is mixed. Superfast reaches 67% of premises. Below the UK average of 93%. Ultrafast sits at 0%. Some homes will get slower connections. Ask your provider about specific speeds at your address. Don't rely on postcode-level data alone. No gigabit connections available yet. Top speeds listed as unknown.
Next-gen fibre infrastructure covers 66.7% of premises.
Limited house price data for SA1 5JQ. Few residential sales on record here. Could be a commercial area, new development, or rental-heavy. Land Registry only records completed sales. Rentals and new-builds under shared ownership may not appear. Check Rightmove or Zoopla for current asking prices. Talk to local estate agents for a ground-level view.
No public EV chargers recorded nearby. Home charging would be the main option. Check Zap-Map for the latest charger locations.
A note on broadband providers. Ofcom data shows what's available. Not which provider to pick. Actual speeds depend on your line, your router, and your provider. Check BT, Sky, Virgin Media, and local FTTP operators. Compare deals at broadbandcompareuk.com or uSwitch. Contract lengths vary. 18 months is standard. Some offer 12. Ask about setup fees. They range from free to £50+. Run a speed test after installation. If speeds don't match what you're paying for, complain.
Transparency matters. Broadband data: Ofcom Connected Nations 2025. House prices: Land Registry. Crime: Police.uk. Demographics: ONS Census 2021. Flood risk: Environment Agency. Speed tests: Ookla Open Data Q4 2025. Cell towers: OpenStreetMap. All free, all public.
Research is one thing. Being there is another. Walk around SA1 5JQ at different times of day. Check if the streets feel safe after dark. Look at how well homes are maintained. Visit the nearest park or green space. These things don't show up in statistics.
Those are the facts for SA1 5JQ. Compare with other postcodes you're considering. Each section above links to its official source. The data is objective. Your priorities decide which trade-offs matter. What works for a young professional differs from a family with children. Check back for updated figures as new data comes in.
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 SA1 5JQ
What broadband speeds are available at SA1 5JQ?
67% of premises can get superfast broadband here. Top listed speed is ~30 Mbps.
Can I get gigabit broadband at SA1 5JQ?
0% of premises here can get gigabit-capable broadband.
What are house prices like near SA1 5JQ?
Recent sale data is limited around SA1 5JQ, which often happens in mixed-use or low-turnover areas.
What schools are near SA1 5JQ?
School data is not loaded for this postcode yet.
What is the flood risk at SA1 5JQ?
SA1 5JQ is marked as Low flood risk in the current dataset.
How is air quality around SA1 5JQ?
Air quality data is not loaded for this postcode yet.
Are there GP surgeries near SA1 5JQ?
GP access data for this postcode is not loaded yet.
What transport links does SA1 5JQ have?
Transport station data is not loaded for this postcode yet.
Is there mobile coverage at SA1 5JQ?
Outdoor 4G coverage is listed at 95% and 5G at undefined% for the wider area.
Can I charge an EV near SA1 5JQ?
EV charging data is not loaded for this postcode yet.
What council tax band is common near SA1 5JQ?
Council tax distribution is not loaded for this postcode yet.
What makes SA1 5JQ different from nearby areas?
SA1 5JQ has its own mix of broadband coverage, local services, prices, and environmental signals. That is why postcode-level pages are more useful than generic town guides.
Should I compare SA1 5JQ with nearby postcodes?
Yes. Small postcode changes can mean different prices, flood signals, and service access.
Is SA1 5JQ worth checking in person?
Yes. The numbers narrow the shortlist, but walking the street still tells you things no dataset can.
How current is the data for SA1 5JQ?
This page uses official datasets that update on different cycles, so it is best used as a strong screening tool.
Map
Area info
Parish
Castle
District
Swansea
Region
Constituency
LSOA
W01000745
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