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Postcode area report · 20 postcodes

LL70 postcode area guide — Isle of Anglesey

House prices, crime, broadband speeds, mobile signal, schools and demographics for the LL70 postcode district in Isle of Anglesey — every official dataset on one page.

The LL70 postcode district serves Isle of Anglesey, Wales, with 20 postcodes currently in use. The wider Isle of Anglesey district is home to around 68,878 people. The median sold house price in LL70 over the last 12 months is £273,170.

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Where is LL70?

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Broadband & internet speeds in LL70

Strong coverage

Superfast (30Mb+)

75.6%

Ultrafast (300Mb+)

75.6%

Gigabit-capable

75.6%

Below USO (10Mb)

4%

Broadband availability in the LL70 postcode district (Isle of Anglesey) is Strong — superfast is near-universal and gigabit is rolling out. Across the 20 postcodes Ofcom measures in LL70, superfast broadband (30 Mbit/s or faster) reaches 75.6% of premises and gigabit-capable lines are available to 75.6%.

Around 4% of premises in LL70 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 LL70

PostcodeSuperfastGigabit
LL70 9DJ0%0%
LL70 9DQ85.7%85.7%
LL70 9DX71.4%71.4%
LL70 9DZ90.9%90.9%
LL70 9EJ83.3%83.3%
LL70 9EQ100%100%
LL70 9EX90.9%90.9%
LL70 9EZ100%100%
LL70 9HJ80%80%
LL70 9HQ83.3%83.3%

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 LL70

Police recorded 4 incidents within about a mile of the centre of LL70 in May 2026 (latest published street-level data). The breakdown:

CategoryIncidentsShare
Anti-social behaviour250.0%
Violence & sexual offences250.0%

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 LL70

Based on 4 sales registered with HM Land Registry in the last 12 months, the median sold price in LL70 is £273,170, down 39.3% on the previous year (£450,000).

Detached

£360,000

3 sales

Latest recorded sales in LL70

DatePriceTypeStreetPostcode
19 Dec 2025£273,170OtherLL70 9EX
15 Dec 2025£360,000DetachedLL70 9PZ
24 Oct 2025£750,000DetachedLL70 9EJ
25 Sep 2025£110,000DetachedLL70 9PX
28 Feb 2025£765,000OtherLL70 9PZ
20 Feb 2025£180,000DetachedLL70 9PJ
2 Aug 2024£450,000DetachedLL70 9PQ
3 Mar 2023£570,000DetachedLL70 9PQ
17 Feb 2023£620,000DetachedLL70 9PX
31 Jan 2023£350,000DetachedLL70 9HZ

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 1517%
15–2918.6%
30–4415.9%
45–6422.1%
65+26.4%
Housing tenure
Owner-occupied68.2%
Private rented15.9%
Social rented3.4%

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around LL70

SchoolPhaseAgesPupilsPostcode
Ysgol Gynradd PenysarnNot applicableLL69 9AZ
Ysgol Gymuned MoelfreNot applicableLL72 8HA
Ysgol Syr Thomas JonesNot applicableLL68 9TH
Ysgol Goronwy OwenNot applicableLL74 8SG
Ysgol Gynradd RhosybolNot applicableLL68 9PP
Ysgol Gynradd AmlwchNot applicableLL68 9DY
Ysgol Gymuned Llannerch-y-meddNot applicableLL71 8DP
Ysgol Gynradd LlanbedrgochNot applicableLL76 8SX

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 LL70

8 rated food businesses operate in LL70. 8 hold the top rating of 5, 0 are rated 4, and none are currently rated 2 or below.

Among the 5-rated: Dulas Boat & Caravan Co, Lucy's Cakes, Pilot Boat, Ty Crempog, Tyddyn Isaf Caravan Site.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in LL70

From a sample of 67 Energy Performance Certificates across 10 LL70 postcodes, the most common rating is band D (average band E). 16% of sampled homes are rated C or better.

Band A

4%

Band B

6%

Band C

6%

Band D

31%

Band E

28%

Band F

12%

Band G

12%

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 LL70 typically use:

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What's it like living in LL70?

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Moving to LL70? Sort your connectivity first

We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Isle of Anglesey — free, no-obligation quote.

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Postcodes in LL70

Neighbouring districts

All Llandudno (LL) postcode districts ›

Frequently asked questions

Where is the LL70 postcode?
LL70 covers Isle of Anglesey in Wales. It contains 20 live postcodes. The map above shows the district centre; the postcode list further down covers individual addresses.
How much do houses cost in LL70?
Based on 4 sales recorded by HM Land Registry in the last 12 months, the median price paid in LL70 is £273,170. See the house-price section above for medians by property type and the most recent sales.
Is LL70 a safe area?
Police recorded 4 incidents within a mile of the centre of LL70 in May 2026, with Anti-social behaviour the most common category. Compare the breakdown above and check street-level detail on police.uk before drawing conclusions — a busy high street inflates raw counts.
What broadband can I get in LL70?
In LL70, 75.6% of premises can order superfast broadband and 75.6% are within reach of a gigabit-capable service (Ofcom Connected Nations). Enter a full postcode in the checker on this page for address-level availability.
Who lives in LL70?
In the wider Isle of Anglesey district, 68% of households own their home, 16% rent privately and 3% are in social housing (Census 2021). The age profile and household counts are in the demographics section above.
How energy efficient are homes in LL70?
Across a sample of 67 Energy Performance Certificates in LL70, the most common rating is band D and the average is band E. 11 of the sampled homes are rated C or better. See the EPC section above for the full band breakdown.

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.

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