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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

LL595RA

Ffordd Yr Eglwys

LL588DS

Chapel Street

LL595SH

Tan Y Ffordd

LL588NF

Beaumaris Road

LL588YW

Allt Goch Bach

LL588UA

Seiriol

LL588DU

Rosemary Lane

LL588PS

Lôn Cae Mawr

LL588AU

Bulkeley Terrace

LL588NA

Tawelfan

LL595SL

Maes Hafodty

LL588HD

Maes Hyfryd

LL588SN

Penyfron Terrace

LL588YE

Seiriol

LL588HN

Maeshyfryd

LL595AZ

Ffordd Yr Eglwys

LL595PR

Cae Ffynon Estate

LL595PU

Seiriol

LL595UB

Lon Bryn Teg

LL588UP

Allt Bron-Philip

LL595TF

Maes Awel

LL588BP

Raglan Street

LL588RS

Seiriol

LL588PR

Lôn Cae Mawr

LL588ER

New Street

LL588HF

Brynteg

LL588LX

Stad Yr Ysgol

LL595TN

Frondeg

LL588EB

Rosemary Lane

LL588RT

Seiriol

LL588AD

Plascoch Terrace

LL588YS

Allt Goch Fawr

LL595TU

Lon Ganol

LL588TB

Seiriol

LL588YP

Allt Goch Fawr

LL595PH

Allt Goch Bach

LL588SY

Seiriol

LL588RF

Bryn Hyfryd

LL588TX

Mynydd Crafcoed

LL588LS

Pont Y Brenin

LL595SR

Seiriol

LL588UB

Seiriol

LL588EN

Rose Hill

LL588ED

Rosemary Lane

LL595PY

Lon Ganol

LL588BY

Green Edge

LL595NY

Bryn Teg Terrace

LL588LW

Lôn Cae Mawr

LL588SA

Parc Terrace

LL588HL

Iscoed

LL588RH

Llanfaes Parc

LL588BQ

Seiriol

LL588RE

Fryars Bay

LL588BU

Victoria Terrace

LL588NH

Gorddinog Crescent

LL588EU

Maes Hyfryd

LL595UU

Glanyfelin

LL588UH

Ponc Y Felin

LL588UL

Seiriol

LL588TA

Seiriol

LL595PB

Glyn Garth Court

LL588HE

Ffordd Meigan

LL588LP

Seiriol

LL588SR

Seiriol

LL588YR

Allt Goch Fawr

LL595PE

Allt Bryn Mel

LL588RW

Seiriol

LL588BE

Menai Court

LL588EE

Rosemary Lane

LL588PN

Seiriol

LL588TP

Maesgwyn

LL595PP

Bryn Cottages

LL588EL

New Street

LL588PH

Seiriol

LL588NS

Haulfre Cottages

LL595ST

Bryn Teg

LL588HW

Wexham Street

LL588NG

Gorddinog Terrace

LL595UD

Lon Ganol

LL588UF

Seiriol

LL588RB

Cartref Cottages

LL588AJ

Church Street

LL595UY

Bron Y Felin

LL588TU

Seiriol

LL588NN

Mona Terrace

LL588TN

Seiriol

LL588RY

Seiriol

LL588SS

Seiriol

LL588YQ

Cae Mair

LL595YH

Gwel Y Llan

LL595UR

Trem Arfon

LL595TY

Brynteg Estate

LL588YT

Allt Goch Fawr

LL588BL

Mill Lane

LL588SP

Seiriol

LL595SD

Ffordd Pentraeth

LL588AA

Church Street

LL595SP

Seiriol

LL588YB

Seiriol

LL595TH

Lon Ganol

Data Sources

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