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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 None deprivation and very low crime levels, with around 45 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
45
Deprivation level
N/A
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
29.93(-12%)
Anti-social behaviour
9.68(-26%)
Public order
4.58(-44%)
Criminal damage and arson
4.4(-40%)
Other theft
2.47(-46%)
Wales average

Demographics

Ethnic groups

British
5,431
95.65%
Other White
111
1.95%
Irish
24
0.42%
White and Black Caribbean (mixed)
18
0.32%
Other Mixed or Multiple ethnic groups
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 58 recent sales, the median property price is £304,000 in Seiriol area, with individual transactions ranging from £132,500 up to £692,500.

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
Detached31£348,000
Flats4£225,000
Semi-Detached5£295,000
Terraced18£213,000

10 years median price trend in Seiriol

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

All postcodes in Seiriol

LL595NL

Cadnant Road

LL588TY

Seiriol

LL588YD

Seiriol

LL588RA

Seiriol

LL588EP

Bunkers Hill

LL588HH

Iscoed

LL588AX

Wexham Place

LL595YB

Mill Lodge Estate

LL588TW

Preswylfa

LL588BN

Tros Yr Afon

LL588TL

Lôn Cae Mawr

LL588TR

Follet Close

LL595NU

Lon Brynteg

LL588PG

Seiriol

LL588BW

Alma Street

LL588AL

Cadnant Court

LL595UW

Ffordd Yr Eglwys

LL588RU

Seiriol

LL588BS

Alma Street

LL588SB

Seiriol

LL595NS

Ffordd Beaumaris

LL588PE

Arfon Terrace

LL595SE

Ffordd Pentraeth

LL588YZ

Cae Morley

LL588YL

Allt Goch Bach

LL588HB

Thomas Close

LL595UE

Lon Ganol

LL588RG

Tyn Lon Cottages

LL588RN

Seiriol

LL588UN

Seiriol

LL588RL

Seiriol

LL588EW

Gaol Street

LL595NT

Lon Bryn Teg

LL595PL

Seiriol

LL588UU

Allt Bron-Philip

LL595UH

Ffordd Yr Eglwys

LL595UF

Caergelach

LL588UT

Allt Bron-Philip

LL588NR

Gorddinog Crescent

LL595UT

Ffordd Yr Eglwys

LL588PL

Seiriol

LL588EG

New Street

LL588BD

West End

LL588AT

Tros Yr Afon

LL588PB

Tyddyn Waen Terrace

LL588YH

Seiriol

LL588BA

Castle Street

LL595PG

Lon Ganol

LL588HG

Thomas Close

LL595YA

Bryn Iorwerth Terrace

LL588SW

Seiriol

LL595YD

Lon Ganol

LL588LD

Burton Way

LL588RR

Seiriol

LL588SL

Coedwig Terrace

LL588RD

Seiriol

LL595QP

Glyn Garth Mews

LL588DN

Margaret Street

LL588AQ

Wern Farm Estate

LL595UG

Lon Ganol

LL595SF

Lon Fferam Uchaf

LL595YE

Lon Bachau

LL588LF

Stryd Llewelyn

LL588UY

Seiriol

LL588SE

Seiriol

LL588LL

Ffordd Eglwys

LL588NY

Seiriol

LL588PF

Marian Terrace

LL588AW

Castle Street

LL595SG

Maes Hafoty

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/05/2026.