About Seion

Seion is a small village located in Gwynedd, Wales, within the postcode area LL55. This community is primarily residential, offering a peaceful environment for its inhabitants. The village is surrounded by the natural beauty of the Welsh countryside, making it a suitable spot for those who appreciate rural life. The area is well-connected to nearby towns and attractions, providing easy access to local amenities. Visitors can explore the surrounding landscapes, which include hills and valleys typical of this region. Seion serves as a practical base for exploring the broader attractions of Gwynedd, including historical sites and outdoor activities.

School Ratings in Seion

There are 35 schools in and around Seion.

House Prices in Seion

The average property price is £207K, with terraced houses making up the majority of the housing stock at around £146K.

Crime and Anti-Social Behaviour in Seion

Recorded crime levels are lower than the national average. Criminal damage & arson is prevalent across Seion, with 2 recorded incidents in January 2026.

Broadband and Mobile Internet in Seion

Broadband speeds in Seion are generally strong, with superfast and ultrafast options widely available. Mobile coverage across 4G and 5G networks is reliable throughout most of the area. For the latest speed predictions, visit Ofcom's broadband checker.

Property Prices 2,591 sales

Average Price £207K
£100 £8M
Detached £285K 648
Semi £192K 569
Terraced £146K 1,039
Flat £130K 55

Crime in Seion 11 crimes · January 2026

Low Crime Area

Seion 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.

4 Violence & Sexual Offences
2 Criminal Damage & Arson
2 Other Theft
1 Anti-Social Behaviour
1 Drugs
1 Shoplifting
Local Policing
North Wales Bethel 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 4 stations

Llanfairpwll Train Station 2.8 miles
Bangor (Gwynedd) Train Station 3.2 miles
Llanfairfechan Train Station 9.4 miles
Bodorgan Train Station 9.8 miles

Location

Local Government

District Gwynedd
Ward Canol Tref Caernarfon
Constituency Arfon
Parish Caernarfon