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Llanberis & Deiniolen

Interactive map displaying Llanberis & Deiniolen

About

Llanberis sits at the foot of Yr Wyddfa (Snowdon), beside Llyn Padarn and Padarn Country Park. The village is the lower terminus of the Snowdon Mountain Railway, which uses a rack-and-pinion line to climb to the summit, and the Llanberis Lake Railway runs along the lake shore. The National Slate Museum at Gilfach Ddu occupies restored workshop buildings from the plateau of local slate working and explains the region’s industrial layout and transport systems. Boats and trails on Llyn Padarn follow the lake’s glacial basin and link directly into village facilities.

Deiniolen lies a short distance to the north of Llanberis on the slopes below Elidir Fawr and the Dinorwig slate complex. Terraced quarry faces and the routes of old inclines mark the land between the two settlements, and some adits and access points for the pumped-storage works are set into the quarry sides. Local footpaths climb from Deiniolen toward moorland and connect into the network of tracks that served the quarries, giving clear traces of how extraction and transport shaped the local map.

Area overview

On average Llanberis & Deiniolen has moderate deprivation and moderate crime levels, with around 50 crimes per 1,000 residents per year. Approximately 11.5% of homes in this area are social housing provided by a local council or housing association. The average income per household in Llanberis & Deiniolen is £49,454 per year. Llanberis & Deiniolen is home to around 6,742 people, with a population density of about 72.5 per km2.

Crime rate
4/10
Crimes per 1k residents
50
Deprivation level
5/10
Income level
9/10
Social housing
11.5%
Connectivity
N/A

Area Profile

Llanberis & Deiniolen Population
6,742
Population density
72.5 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
26.85(-27%)
Anti-social behaviour
11.57(-20%)
Criminal damage and arson
5.19(-36%)
Public order
5.04(-44%)
Burglary
3.56(+33%)
Wales average

Demographics

Ethnic groups

British
6,382
94.66%
Other White
117
1.74%
White and Asian (mixed)
36
0.53%
Irish
33
0.49%
Other Asian
29
0.43%
Total population: 6,742

Economics

Education (age 16+)

Level 4+ (Degree)
2,263
40.56%
Level 3 (A level)
894
16.02%
Level 2 (GCSEs 9-4)
825
14.78%
No qualifications
758
13.58%
Level 1 (GCSEs 3-1)
419
7.51%
Total 16+ residents: 5,580

Housing

Housing tenure

Owns outright
1,229
42.09%
Owns with a mortgage
851
29.14%
Private landlord or letting agency
298
10.21%
Other social rented
227
7.77%
Social rents from council
211
7.23%
Total households: 2,920

Property prices in Llanberis & Deiniolen

Based on 61 recent sales, the median property price is £205,000 in Llanberis & Deiniolen area, with individual transactions ranging from £92,000 up to £450,000.

Price distribution per property type (last year)

Price distribution by property type for Llanberis & Deiniolen 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 Llanberis & Deiniolen over the last year.
TypeSalesMedian
Detached20£292,500
Semi-Detached15£192,000
Terraced26£182,000

10 years median price trend in Llanberis & Deiniolen

Ten year median sale price trend for each property type in Llanberis & Deiniolen.

All postcodes in Llanberis & Deiniolen

LL574HA

Penisa'r-waun

LL554HY

Bryngoleu

LL554SW

Rallt Goch (Ceunant)

LL574BS

Ffordd Y Plas

LL574UR

Bro Infryn

LL553NH

Penisa'r-waun

LL554HD

Tydu Road

LL572RZ

Treborth Road

LL553AP

Penisa'r-waun

LL554HA

High Street

LL554SH

Capel Coch Road

LL574BP

Vaynol Estate

LL574UG

Caerhun

LL553DE

Deiniolen

LL554SZ

Gerddi Padarn

LL554TB

Maes Padarn

LL554TF

Church Road

LL572RX

Treborth Road

LL553EF

Lon Tai Castell

LL553HP

High Street

LL554SN

Capel Coch Road

LL554UD

Llanberis

LL574HB

Pen-Y-Ffridd

LL554TD

Maes Padarn

LL574UF

Waen Wen

LL553BS

Bron Y Waun Terrace

LL554LF

Frongoch

LL554TY

Lon Garret

LL574UY

Lon Plas

LL553AJ

Gwel Y Bigil

LL553EG

Deiniolen

LL553NE

Deiniolen

LL553PT

Cwm-y-glo

LL554NY

Llanberis

LL553LW

Pentre Helen

LL554EP

Water Street

LL554ER

Charlotte Street

LL553BB

Penisa'r-waun

LL553BL

Bryn Eglwys

LL553BP

Bryntirion

LL553DN

Dinorwic Terrace

LL554EG

Coed Y Ddol

LL564QF

Ffordd Fodolydd

LL572LS

Ffordd Menai

LL572LU

Ffordd Tyn Clwt

LL574DT

Caerhun Cottages

LL553DW

Deiniolen

LL554UE

Llanberis

LL553LY

Deiniolen

LL554EY

Market Street

LL554LL

Llainwen Uchaf

LL574EG

Arllechwedd

LL553BA

Bron Rhythallt

LL553EH

Deiniolen

LL553HE

Bryn Eglwys

LL553LT

Victoria Terrace

LL553UA

Tai Gerddi

LL554EW

Well Street

LL554HT

Cambrian Terrace

LL574HH

Bro Rhiwen

LL553AX

Penisa'r-waun

LL553EU

Dinorwic Houses

LL574UN

Howe Street

LL553HB

Deiniolen

LL554HP

Warden Street

LL554TA

Station Road

LL574DF

Ffordd Y Llyn

LL574HE

Pen-Y-Ffridd

LL553EJ

Stad Macpela

LL554HH

Field Terrace

LL554LA

Rock Terrace

LL572LT

Y Rhos

LL574BL

Ffordd Gelli Morgan

LL574EE

Penisa'r-waun

LL574HF

Pen-Y-Ffridd

LL553BY

Minffordd

LL553HA

Deiniolen

LL553LF

Tabernacl Street

LL554GA

Gwel Y Mynydd

LL572NQ

Glan Menai

LL554UR

Llanberis

LL572NZ

Ffordd Bronwydd

LL574YA

Rhydygroes

LL553DD

Minffordd

LL553DF

Stad Hafod

LL554HF

Brynteg

LL554SP

Ceunant Street

LL574FE

Ffordd Y Llyn

Data Sources

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