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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

Deprivation level

4/10

Income level

7/10

Connectivity

N/A

Area Profile

Seiriol Population

5,679

Population density

107.8 per km²

Crime

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

British

5,431

95.65%

Other White

111

1.95%

Irish

0.42%

Other Mixed or Multiple ethnic groups

0.32%

White and Black Caribbean (mixed)

0.32%

Total population: 5,678

Economics

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

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

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)

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.
Type	Sales	Median	5th percentile	25th percentile (Lower quartile)	75th percentile (Upper quartile)	95th percentile
Detached	23	£395,000	£234,995	£316,250	£555,000	£690,750
Flats	1	£240,000	£240,000	£240,000	£240,000	£240,000
Semi-Detached	3	£235,000	£140,500	£182,500	£270,000	£298,000
Terraced	17	£215,000	£161,700	£190,000	£280,000	£477,910

10 years median price trend in Seiriol

All postcodes in Seiriol

LL588AJ

Church Street

LL588AD

Plascoch Terrace

LL588HL

Iscoed

LL595NY

Bryn Teg Terrace

LL588EA

Steeple Lane

LL588HF

Brynteg

LL588NF

Beaumaris Road

LL588RT

Seiriol

LL588RU

Seiriol

LL588UN

Seiriol

LL588AT

Tros Yr Afon

LL588BN

Tros Yr Afon

LL588LN

Lôn Cae Mawr

LL588YE

Seiriol

LL588AW

Castle Street

LL588YX

Cae Mair Uchaf

LL595ST

Bryn Teg

LL595TN

Frondeg

LL588EP

Bunkers Hill

LL588ED

Rosemary Lane

LL588LD

Burton Way

LL588UU

Allt Bron-Philip

LL595QP

Glyn Garth Mews

LL595YD

Lon Ganol

LL588HD

Maes Hyfryd

LL588RG

Tyn Lon Cottages

LL588UP

Allt Bron-Philip

LL595SB

Lon Ganol

LL595BJ

Seiriol

LL588YS

Allt Goch Fawr

LL595TP

Lon Ty Mawr

LL588SG

Seiriol

LL588UY

Seiriol

LL588YG

Seiriol

LL588YZ

Cae Morley

LL588AA

Church Street

LL588DT

Gadlys Lane

LL588LF

Stryd Llewelyn

LL588LG

Hampton Way

LL588UD

Seiriol

LL595PR

Cae Ffynon Estate

LL588BH

Towns End

LL595PE

Allt Bryn Mel

LL588BP

Raglan Street

LL588HE

Ffordd Meigan

LL588PW

Seiriol

LL595SP

Seiriol

LL595UE

Lon Ganol

LL588AX

Wexham Place

LL588EJ

Steeple Lane

LL588EL

New Street

LL595NP

Ffordd Beaumaris

LL595RB

Lon Ty Newydd

LL595TR

Ty Mawr

LL595UB

Lon Bryn Teg

LL595PU

Seiriol

LL588PT

Garth Wen

LL588ES

Wexham Street

LL588EU

Maes Hyfryd

LL588LX

Stad Yr Ysgol

LL595PW

Seiriol

LL595UH

Ffordd Yr Eglwys

LL595YH

Gwel Y Llan

LL588ER

New Street

LL588RD

Seiriol

LL588YR

Allt Goch Fawr

LL595PL

Seiriol

LL595TS

Lon Ty Mawr

LL595PN

Seiriol

LL588NG

Gorddinog Terrace

LL588RA

Seiriol

LL588RH

Llanfaes Parc

LL588YL

Allt Goch Bach

LL588TH

Seiriol

LL588TS

Lon Glan Rhyd

LL595PG

Lon Ganol

LL588LB

Ffordd Eglwys

LL588PH

Seiriol

LL588TW

Preswylfa

LL588UA

Seiriol

LL588YW

Allt Goch Bach

LL588NH

Gorddinog Crescent

LL595SE

Ffordd Pentraeth

LL595SR

Seiriol

LL595UN

Ffordd Yr Eglwys

LL588LP

Seiriol

LL588LW

Lôn Cae Mawr

LL595UU

Glanyfelin

LL588NT

Seiriol

LL595SW

Seiriol

LL588DA

Tyn Y Gongl Cottage

LL588DS

Chapel Street

LL588RB

Cartref Cottages

LL588YT

Allt Goch Fawr

LL588RE

Fryars Bay

LL588RS

Seiriol

LL588TY

Seiriol

LL588AZ

Allt Goch Bach

LL588YF

Seiriol

LL595TE

Lon Ty Newydd

Data Sources

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

HM Land Registry • Police.uk • DfE • ONS • TfL • National Rail

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Seiriol

Interactive map displaying Seiriol

About

Area overview

Area Profile

Crime

Crime per 1,000 population

Demographics

Ethnic groups

Economics

Education (age 16+)

Housing

Housing tenure

Property prices in Seiriol

All postcodes in Seiriol

Data Sources