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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

LL553LA

Gwel Y Bigil

LL554FE

Trem Y Chwarel

LL554PX

Coed Y Glyn

LL574UD

Arllechwedd

LL553DA

Penisa'r-waun

LL553EW

Deiniolen

LL553HD

Follet Close

LL553LJ

Bro Gwenlyn

LL572PD

Llys Y Garnedd

LL553EE

Lon Tai Castell

LL553LE

Green Terrace

LL554UL

Gwastadnant

LL553AN

Penisa'r-waun

LL553LD

Glyn Terrace

LL553LG

Cynfi Terrace

LL553ND

Deiniolen

LL554FA

Park Lane

LL554ST

Stryd Fawr

LL572DL

Rhosfryn

LL574DY

Arllechwedd

LL574ED

Penisa'r-waun

LL553LP

Hafodoleu

LL553PL

Craig Dinas

LL554TG

Mur Mawr

LL554UW

Llanberis

LL574DP

Tan-Y-Maes

LL553ES

Minffordd

LL553HY

North Road

LL554TS

York Terrace

LL554TW

Maes Derlwyn

LL574FG

Ffordd Y Parc

LL554ET

Henry Street

LL554UP

Dol Eilian

LL574HD

Carreg Y Gath

LL574HG

Cae Glas

LL553PW

Bryn Eithin Terrace

LL554EE

Allt Goch

LL554TN

Dol Elidir

LL553BW

Llys Y Gwynt

LL553PN

Arthur Terrace

LL554LE

Frongoch

LL564QA

Bangor Street

LL574ET

Wesley Street

LL574FN

Ffordd Y Parc

LL553DG

Lon Haern

LL553ET

Dinorwic Cottages

LL553HW

Vaynol Terrace

LL572NN

Lôn Y Wyddfa

LL572NP

Ffordd Menai

LL553PB

Cwm-y-glo

LL554JB

Stryd Goodman

LL554TE

Maes Padarn

LL554TU

Bryniau Gerddi

LL564JX

Y Faenol

LL574EF

Carfan

LL553EB

Maes Gwylfa

LL553EY

Deiniolen

LL554TL

Blaen Y Ddol

LL574ER

Bryn Teg Terrace

LL574EU

Bakehouse Street

LL574EX

Bron Y Waun

LL553PJ

Erwr Nant

LL574DS

Arllechwedd

LL574DU

Arllechwedd

LL553LN

Pentre Helen

LL554UH

Llanberis

LL574EL

Bro Rhiwen

LL553BN

Penisa'r-waun

LL553DL

Deiniolen

LL554LG

Llainwen Isaf

LL553DU

California Terrace

LL553NF

Hafod Oleu

LL553PA

Deiniolen

LL554HL

Goodman Street

LL554LN

Llanberis

LL553BT

Penisa'r-waun

LL553LR

Hafod Oleu

LL553PP

Penisa'r-waun

LL554UN

Llanberis

LL564QB

Nant Y Garth

LL574UA

Caeau Gleision

LL574UP

High Street

LL553EP

Lon Garret

LL574BN

Parc Menai Business Park

LL574UB

Arllechwedd

LL572NJ

Tyn Lon

LL553DP

Glandwr Terrace

LL553LB

View Terrace

LL554EU

High Street

LL564JU

Ffordd Garnedd

LL553LU

Deiniolen

LL553DH

Arfon Cottages

LL553EN

Lon Garret

LL553NT

Minffordd

LL554SS

Llanberis

LL553HN

High Street

LL554UB

Maes Padarn

LL564QE

Ffordd Fodolydd

LL574BU

Hafod Lane

LL574EP

Chapel Street

Data Sources

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