LL78 postcode area guide — Isle of Anglesey
House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL78 postcode district in Isle of Anglesey — every official dataset on one page.
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Where is LL78?
Broadband & internet speeds in LL78
Good coverage
Superfast (30Mb+)
84%
Ultrafast (300Mb+)
25.2%
Gigabit-capable
25.2%
Below USO (10Mb)
7.5%
Broadband availability in the LL78 postcode district (Isle of Anglesey) is Good — superfast broadband reaches most premises. Across the 22 postcodes Ofcom measures in LL78, superfast broadband (30 Mbit/s or faster) reaches 84% of premises and gigabit-capable lines are available to 25.2%.
Around 7.5% of premises in LL78 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 LL78
| Postcode | Superfast | Gigabit |
|---|---|---|
| LL78 7JF | 43.8% | 25% |
| LL78 7JG | 0% | 0% |
| LL78 7JH | 95.2% | 14.3% |
| LL78 7JJ | 71.4% | 71.4% |
| LL78 7JL | 0% | 0% |
| LL78 7JQ | 75% | 0% |
| LL78 8AD | 100% | 100% |
| LL78 8JF | 100% | 61.1% |
| LL78 8JG | 100% | 0% |
| LL78 8JH | 85.7% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Isle of Anglesey
Ofcom's coverage model for the wider Isle Of Anglesey district (38,436 premises):
4G indoors — all networks
69.9%
4G outdoors — all networks
97.4%
5G outdoors — all networks
—
Voice indoors — all networks
76.2%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in LL78
Police recorded 1 incidents within about a mile of the centre of LL78 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Anti-social behaviour | 1 | 100.0% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in LL78
Based on 10 sales registered with HM Land Registry in the last 12 months, the median sold price in LL78 is £236,000, down 8.5% on the previous year (£258,000).
Detached
£242,000
5 sales
Semi-detached
£228,000
4 sales
Latest recorded sales in LL78
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 13 May 2026 | £228,000 | Semi-detached | Cae Cali | LL78 8JJ |
| 19 Mar 2026 | £195,000 | Semi-detached | New Council Houses | LL78 8JN |
| 5 Mar 2026 | £242,000 | Detached | LL78 8JG | |
| 18 Feb 2026 | £255,000 | Detached | LL78 8JR | |
| 6 Feb 2026 | £240,000 | Semi-detached | Parc Delfryn | LL78 8AD |
| 24 Oct 2025 | £247,000 | Semi-detached | Parc Delfryn | LL78 8AD |
| 2 Sep 2025 | £236,000 | Detached | LL78 8JG | |
| 29 Aug 2025 | £201,500 | Detached | Cae Cali | LL78 8JJ |
| 22 Aug 2025 | £433,400 | Detached | LL78 8JG | |
| 1 Aug 2025 | £100,000 | Other | LL78 7JF |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Isle of Anglesey demographics
Census 2021 figures for the wider Isle of Anglesey district (68,878 residents, 30,824 households):
| Age profile | |
|---|---|
| Under 15 | 17% |
| 15–29 | 18.6% |
| 30–44 | 15.9% |
| 45–64 | 22.1% |
| 65+ | 26.4% |
| Housing tenure | |
|---|---|
| Owner-occupied | 68.2% |
| Private rented | 15.9% |
| Social rented | 3.4% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around LL78
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Ysgol Goronwy Owen | Not applicable | — | — | LL74 8SG |
| Ysgol Gynradd Llanbedrgoch | Not applicable | — | — | LL76 8SX |
| Ysgol Gymuned Moelfre | Not applicable | — | — | LL72 8HA |
| Ysgol Gynradd Talwrn | Not applicable | — | — | LL77 7TG |
| Ysgol Gymuned Pentraeth | Not applicable | — | — | LL75 8UP |
| Ysgol Corn Hir | Not applicable | — | — | LL77 7JB |
| Ysgol Y Graig | Not applicable | — | — | LL77 7JA |
| Canolfan Addysg Y Bont | Not applicable | — | — | LL77 7NG |
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 LL78
6 rated food businesses operate in LL78. 6 hold the top rating of 5, 0 are rated 4, and none are currently rated 2 or below.
Among the 5-rated: Benllech Tandoori, California Hotel Ltd, Dessert Shack, Jack's Burger, Penrhos Caravan Site.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in LL78
From a sample of 108 Energy Performance Certificates across 12 LL78 postcodes, the most common rating is band D (average band D). 33% of sampled homes are rated C or better.
Band A
1%
Band B
18%
Band C
15%
Band D
24%
Band E
22%
Band F
13%
Band G
7%
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 Isle of Anglesey
Landlines around LL78 typically use:
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What's it like living in LL78?
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Moving to LL78? Sort your connectivity first
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Postcodes in LL78
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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.