SA20 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 236 postcodes across 1 sector in Carmarthenshire.
Gigabit
55%
Superfast
62%
Postcodes
236
SA20 is a small Carmarthenshire cluster of 236 postcodes with moderate 54.7% gigabit reach and severe connectivity challenges: 7.1% below the universal service obligation.
Broadband speeds in SA20
Share of SA20 premises by the fastest download speed available, averaged across all 236 postcodes in the district.
Superfast reaches 61.6% of postcodes already flagging underinvestment. Gigabit capacity is 54.7%, with no full-fibre data, suggesting limited fixed-line rollout. The speed profile is dominated by the middle tier: 54.7% hit 300 Mbps or faster, but 6.9% sit between 30 and 300 Mbps, and a significant 17.9% fall below 10 Mbps the second-worst below-USO rate in this batch. Fixed wireless covers 4.5%, offering minimal safety net. SA20 sits at the lower end of connectivity alongside SA17, SA32, and SA33, indicating concentrated rural deprivation across south-west Carmarthenshire.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
7%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
5%
Premises that can use a fixed wireless access service
Broadband by sector
SA20 splits into 1 postcode sector. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| SA20 0 | 236 | 62% | TBC | 55% |
All SA20 0 postcodes (236)
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Living in Carmarthenshire
SA20 contains rural Carmarthenshire at its most challenged. Nearly one-fifth sit in broadband poverty; intervention is essential for digital inclusion.
Remote worker score
50/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
SA20 broadband FAQs
Why is SA20 so underserved relative to SA14?
SA20 is tiny (236 postcodes) and likely the most remote corner of Carmarthenshire, with sparse demand and difficult terrain slowing investment.
What if my SA20 postcode is in the 17.9% below 10 Mbps?
You are virtually certain to qualify for universal service obligation intervention. Contact your council and provider immediately support is available.
When is fibre likely to reach SA20?
With only 54.7% gigabit and 61.6% superfast, completion is years away. Ask your provider for specific timelines; rural Welsh programmes often extend to 2027.
Are there alternatives to waiting for fibre in SA20?
Fixed wireless covers 4.5% minimal help. Satellite services may be your most reliable backup for remote SA20 properties.
Neighbouring districts
Check your exact postcode
Every postcode in SA20 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources