LL39 postcode area guide — Gwynedd
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL39 postcode district in Gwynedd — every official dataset on one page.
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Where is LL39?
Broadband & internet speeds in LL39
Strong coverage
Superfast (30Mb+)
62.8%
Ultrafast (300Mb+)
60.9%
Gigabit-capable
60.9%
Below USO (10Mb)
0%
Broadband availability in the LL39 postcode district (Gwynedd) is Strong — superfast is near-universal and gigabit is rolling out. Across the 18 postcodes Ofcom measures in LL39, superfast broadband (30 Mbit/s or faster) reaches 62.8% of premises and gigabit-capable lines are available to 60.9%.
Around 0% of premises in LL39 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in LL39
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL39 1AJ | 100% | 100% |
| LL39 1AQ | 100% | 100% |
| LL39 1AX | 95.2% | 95.2% |
| LL39 1AZ | 100% | 100% |
| LL39 1BJ | 94.1% | 94.1% |
| LL39 1BQ | 87.5% | 87.5% |
| LL39 1BX | 100% | 100% |
| LL39 1BZ | 66.7% | 66.7% |
| LL39 1DQ | 0% | 0% |
| LL39 1LJ | 0% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Gwynedd
Ofcom's coverage model for the wider Gwynedd district (68,440 premises):
4G indoors — all networks
76.8%
4G outdoors — all networks
95.3%
5G outdoors — all networks
—
Voice indoors — all networks
81.4%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
House prices in LL39
Based on 3 sales registered with HM Land Registry in the last 12 months, the median sold price in LL39 is £175,000, down 47.8% on the previous year (£335,000).
Latest recorded sales in LL39
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 20 Feb 2026 | £427,500 | Other | LL39 1YU | |
| 23 Oct 2025 | £175,000 | Terraced | Arthog Terrace | LL39 1AQ |
| 29 Aug 2025 | £150,000 | Terraced | Arthog Terrace | LL39 1AQ |
| 11 Apr 2025 | £170,000 | Semi-detached | St Marys Terrace | LL39 1BQ |
| 28 Mar 2025 | £130,000 | Terraced | Arthog Terrace | LL39 1AQ |
| 6 Dec 2024 | £470,000 | Detached | LL39 1YT | |
| 6 Dec 2024 | £335,000 | Detached | LL39 1YT | |
| 14 Nov 2024 | £500,000 | Other | LL39 1AX | |
| 27 Sep 2024 | £485,000 | Terraced | Mawddach Crescent | LL39 1BJ |
| 12 Sep 2024 | £219,950 | Terraced | LL39 1BQ |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Gwynedd demographics
Census 2021 figures for the wider Gwynedd district (117,393 residents, 51,105 households):
| Age profile | |
|---|---|
| Under 15 | 16.6% |
| 15–29 | 23.3% |
| 30–44 | 15.9% |
| 45–64 | 21% |
| 65+ | 23.2% |
| Housing tenure | |
|---|---|
| Owner-occupied | 65.4% |
| Private rented | 17.6% |
| Social rented | 9.9% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL39
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol y Traeth | Not applicable | — | — | LL42 1HH |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in LL39
4 rated food businesses operate in LL39. 4 hold the top rating of 5, 0 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Arthog Outdoor Education Centre, Bohemia Cottage, Graig Wen Touring Park, Min Y Don Christian Adventure Centre.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL39
From a sample of 82 Energy Performance Certificates across 8 LL39 postcodes, the most common rating is band E (average band E). 12% of sampled homes are rated C or better.
Band B
2%
Band C
10%
Band D
20%
Band E
26%
Band F
26%
Band G
17%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Gwynedd
Landlines around LL39 typically use:
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What's it like living in LL39?
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Moving to LL39? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Gwynedd — free, no-obligation quote.
Postcodes in LL39
Neighbouring districts
All Llandudno (LL) postcode districts ›
Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.