Place CheckerOfficial local evidence

Census 2021 neighbourhood · W02000014

Llanberis & Deiniolen

Llanberis & Deiniolen is a Census neighbourhood of about 6,742 residents in Gwynedd. This is a statistical area, not an administrative boundary or a postcode district.

Area evidence brief for Gwynedd
6,742

Usual residents

ONS Census 2021 · MSOA

2,920

Households

ONS Census 2021 · MSOA

72.5

Residents per km²

ONS Census 2021 · MSOA

71.2%

Households owning their home

ONS Census 2021 · tenure

12.8%

Households with no car or van

ONS Census 2021 · car availability

40.6%

Adults with a degree or above

ONS Census 2021 · qualifications

Neighbourhoods most like this one

Closest matches elsewhere in England and Wales, across 14 Census themes. Similarity is statistical, not a recommendation, and says nothing about how anywhere feels to live in.

Bodedern & Rhosneigr, Isle of Anglesey6,894 residents · 63.8% owned · 10.6% no carNewborough, Isle of Anglesey8,032 residents · 72.6% owned · 8.6% no carLlangefni, Isle of Anglesey7,039 residents · 60.7% owned · 17.5% no carCarmarthen West & Cynwyl Elfed, Carmarthenshire8,469 residents · 70.0% owned · 14.4% no carRuabon & Marchwiel, Wrexham6,553 residents · 65.5% owned · 14.0% no carLlanrwst & Betws-y-coed, Conwy8,521 residents · 69.1% owned · 13.1% no car

Most similar within Gwynedd

The closest matches in the same local authority.

Bethesda, Gwynedd8,209 residents · 68.1% owned · 15.5% no carCaernarfon West & Waunfawr, Gwynedd6,359 residents · 71.3% owned · 16.1% no carBethel & Llanrug, Gwynedd6,425 residents · 75.6% owned · 10.6% no carPen-y-groes, Tal-y-sarn & Dyffryn Nantlle, Gwynedd7,576 residents · 71.6% owned · 13.2% no car

Census 2021 · Census neighbourhood (MSOA)

Life in Llanberis & Deiniolen

People, households and homes at the stated Census geography. These describe the 2021 population, not the occupants of a particular home.

Tenure

Owned71.2%
2,080 households
Social rented15%
438 households
Private rented13.2%
385 households
Lives rent free0.4%
13 households
Shared ownership0.1%
4 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Detached36.7%
1,071 households
Terraced34%
994 households
Semi-detached24.5%
716 households
In a purpose-built block of flats or tenement2.1%
62 households
In a commercial building, for example, in an office building, hotel or over a shop1%
30 households
Part of another converted building, for example, former school, church or warehouse0.8%
22 households
Part of a converted or shared house, including bedsits0.6%
17 households
A caravan or other mobile or temporary structure0.3%
9 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household41.2%
1,203 households
2 cars or vans in household30.9%
902 households
3 or more cars or vans in household15.2%
443 households
No cars or vans in household12.8%
373 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms50.3%
1,469 households
2 bedrooms27.5%
803 households
4 or more bedrooms18.7%
546 households
1 bedroom3.5%
103 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household62%
1,809 households
One-person household32.4%
945 households
Other household types5.7%
166 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Household size

2 people in household33.5%
979 households
1 person in household32.3%
945 households
3 people in household16%
469 households
4 people in household12.3%
359 households
5 people in household4%
117 households
6 people in household1.3%
38 households
7 people in household0.3%
10 households
8 or more people in household0.2%
6 households
0 people in household0%
0 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1516%
1,078 residents
15–2916.9%
1,140 residents
30–4418%
1,211 residents
45–6429.2%
1,965 residents
65 and over19.9%
1,344 residents
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White97%
6,537 residents
Mixed or Multiple ethnic groups1.4%
96 residents
Asian, Asian British or Asian Welsh1.1%
73 residents
Other ethnic group0.3%
19 residents
Black, Black British, Black Welsh, Caribbean or African0.3%
17 residents
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

Level 4 qualifications or above40.6%
2,263 residents aged 16 and over
Level 3 qualifications16%
894 residents aged 16 and over
Level 2 qualifications14.8%
825 residents aged 16 and over
No qualifications13.6%
758 residents aged 16 and over
Level 1 and entry level qualifications7.5%
419 residents aged 16 and over
Apprenticeship5.6%
315 residents aged 16 and over
Other qualifications1.9%
106 residents aged 16 and over
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)60.9%
3,400 residents aged 16 and over
Economically inactive37.2%
2,074 residents aged 16 and over
Economically active and a full-time student1.9%
108 residents aged 16 and over
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L4, L5 and L6 Lower managerial, administrative and professional occupations21.8%
1,214 residents aged 16 and over
L8 and L9 Small employers and own account workers13%
727 residents aged 16 and over
L12 Semi-routine occupations12.3%
687 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations11.9%
663 residents aged 16 and over
L13 Routine occupations11.2%
623 residents aged 16 and over
L7 Intermediate occupations9.8%
547 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations7.3%
409 residents aged 16 and over
L15 Full-time students6.6%
371 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed6.1%
339 residents aged 16 and over
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health55%
3,710 residents
Good health27.8%
1,876 residents
Fair health12.1%
818 residents
Bad health3.7%
250 residents
Very bad health1.3%
88 residents
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act81.4%
5,490 residents
Disabled under the Equality Act18.6%
1,252 residents
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is not deprived in any dimension52.8%
1,543 households
Household is deprived in one dimension30.4%
887 households
Household is deprived in two dimensions13.4%
390 households
Household is deprived in three dimensions3.4%
98 households
Household is deprived in four dimensions0.1%
3 households
Llanberis & Deiniolen · Census neighbourhood (MSOA) · ONS Census 2021

Each percentage uses its Census table’s own total. Rounding and source categories can affect totals. ONS Census data · OGL v3.0.

How the similarity is worked out

Alike on the Census, which is not the same as alike to live in.

Every neighbourhood is described by its shares across the Census themes above — tenure, housing, cars, household make-up, age, ethnic group, qualifications, work, health and deprivation — each theme weighted equally, which is the approach ONS takes in its own Output Area Classification. The neighbourhoods listed are the closest on those numbers, published in full rather than folded into a score. Nothing here measures schools, crime, prices or what a place is like to be in, and a close match is a statistical fact rather than a suggestion to move.

Browse every neighbourhood in Gwynedd

Evidence ledger

Source and date are part of the record.

Shared catalogue checked 2026-08-28: 88 candidate data layers listed. Catalogue presence is not publication approval; only separately approved public projections may be shown.