Deiniolen on the map

Location in GwyneddDeiniolen sits where the marker shows within the county.

23,658
Population
9,231
Households
12
Schools nearby
£46,974
Avg. household income
777
Businesses
152
People per km²
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About Deiniolen

Deiniolen is a village located in Gwynedd, Wales, within the postcode area LL55. It lies at the foot of the Snowdon mountain range, making it a convenient base for those wishing to explore the surrounding natural landscape. The village is primarily residential, with a mix of local amenities, including a shop and a primary school, serving the community.

The area is known for its proximity to Snowdonia National Park, which offers numerous walking and hiking opportunities. Visitors can enjoy various outdoor activities, including climbing and cycling. Deiniolen's location also allows for easy access to nearby towns such as Caernarfon and Llanberis, where further facilities and attractions can be found. The village provides a quiet environment while being close to the attractions of the Welsh countryside.

School Ratings in Deiniolen

There are 21 schools in and around Deiniolen.

House Prices in Deiniolen

The average property price is £223K, with terraced houses making up the majority of the housing stock at around £147K.

Crime and Anti-Social Behaviour in Deiniolen

Recorded crime levels are lower than the national average. Anti-social behaviour is prevalent across Deiniolen, with 1 recorded incidents in May 2026.

Healthcare in Deiniolen

There is 1 GP surgery within three miles of Deiniolen, the nearest being The Surgery (2.2 miles away).

Property Prices 2,562 sales

Average Price £223K
£100 , £24.13M
Detached £291K 628
Semi £196K 581
Terraced £147K 990
Flat £128K 56

Household Income in Deiniolen ONS 2023

The average total household income in Deiniolen is approximately £46,974 a year before tax, 15% below the national average of £55,302. After tax and benefits, the average disposable (net) household income is around £36,975. These are modelled estimates from the Office for National Statistics for the financial year ending 2023.

Deiniolen £46,974
England & Wales avg. £55,302

Net (after tax) household income averages £36,975.

Businesses in Deiniolen ONS 2025

There are approximately 777 active businesses based in Deiniolen, around 33 for every 1,000 residents. The local economy is dominated by small firms: about 86% are micro-businesses employing fewer than 10 people, while 21 are larger employers with 50 or more staff. Figures are from the Office for National Statistics UK Business Counts.

777 Total businesses
33 Per 1,000 residents
Micro, 0-9 86%
Small, 10-49 11%
Medium, 50-249 2%
Large, 250+ 1%

Crime in Deiniolen 12 crimes · May 2026

Low Crime Area

Deiniolen records relatively low levels of reported crime compared to national averages. Violence & sexual offences is the most commonly logged offence type, though overall numbers remain modest. The area is generally considered a safe and settled town with a strong sense of community.

Violence & Sexual Offences 8
Anti-Social Behaviour 1
Other Theft 1
Public Order 1
Shoplifting 1
Local Policing
North Wales Deiniolen Visit force website →
Data from data.police.uk · Contains public sector information licensed under the Open Government Licence v3.0
Crime figures depend on reporting by individual police forces and may not reflect the full picture in all areas.

Nearest Train Stations 3 stations

Bangor (Gwynedd) Train Station 5.1 miles
Llanfairpwll Train Station 5.9 miles
Llanfairfechan Train Station 9.6 miles

Location

Local Government

District Gwynedd
Ward Canol Tref Caernarfon
Constituency Arfon
Parish Caernarfon

Home Ownership in Deiniolen

Of the 10,267 households in and around Deiniolen, 67% are owned, 20% are socially rented and 13% are privately rented. Home ownership here is higher than the England and Wales average of 63%.

Owned 67% Social rented 20% Private rented 13%

Tenure from the 2021 Census (ONS), for the postcode districts covering Deiniolen.

Frequently Asked Questions about Deiniolen

What is the population of Deiniolen?
Deiniolen has a population of approximately 23,658 residents, based on the latest census figures for the surrounding postcode area.
What is the average house price in Deiniolen?
The average property in and around Deiniolen sold for about £222,837, based on HM Land Registry Price Paid records. That is around 36% below the England and Wales average of £349,091.
What postcodes cover Deiniolen?
Deiniolen is covered by the LL55 postcode district.
How many schools are there in Deiniolen?
There are 12 schools within easy reach of Deiniolen, spanning primary, secondary and other phases.
Where is the nearest train station to Deiniolen?
The nearest railway station to Deiniolen is Bangor (Gwynedd) Train Station, about 5.1 miles away.