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Seiriol

Interactive map displaying Seiriol

About

Seiriol ward occupies the north-eastern peninsula of Anglesey, encompassing the town of Amlwch and its surrounding coastal and rural landscapes. The area is defined by its industrial heritage and dramatic coastline, with the large port of Amlwch historically central to the region's copper mining trade. Inland, the terrain consists of open farmland and smaller settlements, creating a mix of maritime and agricultural environments.

The coastline features rugged cliffs and the notable Amlwch Port, which was once one of the world's largest copper ore exporting harbours. Remnants of this past, including the distinctive copper kingdom centre, are integrated into the local landscape. The ward extends to include the rural community of Llanfechell and stretches towards the north-east tip of the island, marked by working farmland and quiet coastal paths.

Area overview

On average Seiriol has moderate deprivation and very low crime levels, with around 46 crimes per 1,000 residents per year. Approximately 9.0% of homes in this area are social housing provided by a local council or housing association. The average income per household in Seiriol is £45,901 per year. Seiriol is home to around 5,679 people, with a population density of about 107.8 per km2.

Crime rate
2/10
Crimes per 1k residents
46
Deprivation level
4/10
Income level
7/10
Social housing
9%
Connectivity
N/A

Area Profile

Seiriol Population
5,679
Population density
107.8 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
29.41(-20%)
Anti-social behaviour
10.04(-31%)
Public order
5.11(-43%)
Criminal damage and arson
3.7(-54%)
Other theft
3.7(-27%)
Wales average

Demographics

Ethnic groups

British
5,431
95.65%
Other White
111
1.95%
Irish
24
0.42%
Other Mixed or Multiple ethnic groups
18
0.32%
White and Black Caribbean (mixed)
18
0.32%
Total population: 5,678

Economics

Education (age 16+)

Level 4 qualifications or above
2,098
42.92%
Level 3 (A level)
752
15.38%
Level 2 (GCSEs 9-4)
671
13.73%
No qualifications
660
13.5%
Level 1 (GCSEs 3-1)
317
6.49%
Total 16+ residents: 4,888

Housing

Housing tenure

Owns outright
1,408
53.39%
Owns with a mortgage
545
20.67%
Private landlord or letting agency
290
11%
Social rents from council
261
9.9%
Other forms of private rent
73
2.77%
Total households: 2,637

Property prices in Seiriol

Based on 44 recent sales, the median property price is £308,750 in Seiriol area, with individual transactions ranging from £130,000 up to £749,550.

Price distribution per property type (last year)

Price distribution by property type for Seiriol in the last year.

Median sale price and percentiles per property type (last year)

Median sale price, sales count, and percentile information for each property type in Seiriol over the last year.
TypeSalesMedian
Detached23£395,000
Flats1£240,000
Semi-Detached3£235,000
Terraced17£215,000

10 years median price trend in Seiriol

Ten year median sale price trend for each property type in Seiriol.

All postcodes in Seiriol

LL595UG

Lon Ganol

LL588HN

Maeshyfryd

LL588AP

Castle Street

LL588LY

Stad Yr Ysgol

LL588TX

Mynydd Crafcoed

LL588UH

Ponc Y Felin

LL595RD

Mill Bank Estate

LL588BW

Alma Street

LL588SH

Seiriol

LL595RA

Ffordd Yr Eglwys

LL595SN

Seiriol

LL595YF

Bron Haul

LL588AE

Steeple Lane

LL588BE

Menai Court

LL588PA

Castle Street

LL595NL

Cadnant Road

LL595UF

Caergelach

LL588PN

Seiriol

LL588PR

Lôn Cae Mawr

LL588SA

Parc Terrace

LL595NS

Ffordd Beaumaris

LL595TB

Allt Cichle

LL595YE

Lon Bachau

LL588BB

Castle Street

LL588HA

Arnold Close

LL595AZ

Ffordd Yr Eglwys

LL595PH

Allt Goch Bach

LL595PT

Tegfan Terrace

LL595UL

Ffordd Yr Eglwys

LL588BS

Alma Street

LL588ET

Stanley Street

LL588LH

St Catherines Close

LL588NR

Gorddinog Crescent

LL588RN

Seiriol

LL588RW

Seiriol

LL588SS

Seiriol

LL588EY

Maeshyfryd

LL588LE

Stryd Llewelyn

LL588TR

Follet Close

LL595TH

Lon Ganol

LL595TT

Pencae

LL595TY

Brynteg Estate

LL588BU

Victoria Terrace

LL588EE

Rosemary Lane

LL588SW

Seiriol

LL588YD

Seiriol

LL595NU

Lon Brynteg

LL595SG

Maes Hafoty

LL595TD

Cichle Hill

LL588DL

Little Lane

LL588EB

Rosemary Lane

LL588HH

Iscoed

LL588ND

Seiriol

LL588SU

Seiriol

LL595UW

Ffordd Yr Eglwys

LL588PF

Marian Terrace

LL588RL

Seiriol

LL588UF

Seiriol

LL588UL

Seiriol

LL588YQ

Cae Mair

LL588HR

Gerddi Stanley

LL595PF

Allt Bryn Mel

LL595SH

Tan Y Ffordd

LL595YB

Mill Lodge Estate

LL588LL

Ffordd Eglwys

LL588LS

Pont Y Brenin

LL595UY

Bron Y Felin

LL588HP

Bulkeley Cottages

LL588TN

Seiriol

LL595NR

Ffordd Beaumaris

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/01/2026.