Place CheckerOfficial local evidence

Census 2021 neighbourhood · W02000257

Mountain Ash

Mountain Ash is a Census neighbourhood of about 7,249 residents in Rhondda Cynon Taf. This is a statistical area, not an administrative boundary or a postcode district.

7,249

Usual residents

ONS Census 2021 · MSOA

3,302

Households

ONS Census 2021 · MSOA

603.6

Residents per km²

ONS Census 2021 · MSOA

66.4%

Households owning their home

ONS Census 2021 · tenure

26.6%

Households with no car or van

ONS Census 2021 · car availability

22.9%

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.

Tredegar & Georgetown, Blaenau Gwent8,078 residents · 59.7% owned · 24.7% no carBlaina & Nantyglo, Blaenau Gwent9,097 residents · 59.2% owned · 21.4% no carAbertillery North & Cwmtillery, Blaenau Gwent8,611 residents · 60.1% owned · 25.8% no carMaesteg East, Bridgend7,174 residents · 67.5% owned · 25.1% no carEasington & Hawthorn, County Durham5,762 residents · 65.1% owned · 25.4% no carNant-y-moel, Ogmore Vale & Blackmill, Bridgend7,981 residents · 67.5% owned · 21.2% no car

Most similar within Rhondda Cynon Taf

The closest matches in the same local authority.

Aberaman, Rhondda Cynon Taf10,012 residents · 64.3% owned · 26.6% no carAberdare North & Llwydcoed, Rhondda Cynon Taf6,765 residents · 67.3% owned · 23.0% no carTreorchy, Rhondda Cynon Taf7,648 residents · 72.5% owned · 24.1% no carTonypandy East, Rhondda Cynon Taf8,197 residents · 67.0% owned · 25.3% no car

Census 2021 · Census neighbourhood (MSOA)

Life in Mountain Ash

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

Tenure

Owned66.4%
2,191 households
Private rented18%
595 households
Social rented15.4%
510 households
Lives rent free0.2%
5 households
Shared ownership0%
1 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Terraced57.7%
1,906 households
Semi-detached20.4%
673 households
Detached12.3%
407 households
In a purpose-built block of flats or tenement8.2%
272 households
In a commercial building, for example, in an office building, hotel or over a shop0.7%
23 households
Part of a converted or shared house, including bedsits0.3%
10 households
Part of another converted building, for example, former school, church or warehouse0.3%
10 households
A caravan or other mobile or temporary structure0%
1 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household41.9%
1,384 households
No cars or vans in household26.6%
880 households
2 cars or vans in household23.7%
782 households
3 or more cars or vans in household7.8%
258 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms53.9%
1,781 households
2 bedrooms27.5%
908 households
4 or more bedrooms12.4%
409 households
1 bedroom6.2%
206 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household62.6%
2,068 households
One-person household34%
1,125 households
Other household types3.4%
111 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Household size

2 people in household35%
1,155 households
1 person in household34%
1,125 households
3 people in household15.6%
516 households
4 people in household10.7%
353 households
5 people in household3.5%
117 households
6 people in household0.9%
29 households
7 people in household0.2%
7 households
8 or more people in household0.1%
2 households
0 people in household0%
0 households
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1516.3%
1,181 residents
15–2918.1%
1,313 residents
30–4418%
1,307 residents
45–6426.8%
1,943 residents
65 and over20.8%
1,505 residents
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White97.8%
7,094 residents
Asian, Asian British or Asian Welsh0.9%
66 residents
Mixed or Multiple ethnic groups0.8%
56 residents
Black, Black British, Black Welsh, Caribbean or African0.3%
22 residents
Other ethnic group0.2%
13 residents
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

No qualifications26.4%
1,576 residents aged 16 and over
Level 4 qualifications or above22.9%
1,368 residents aged 16 and over
Level 2 qualifications17.5%
1,045 residents aged 16 and over
Level 3 qualifications15.2%
909 residents aged 16 and over
Level 1 and entry level qualifications9.9%
591 residents aged 16 and over
Apprenticeship5.5%
331 residents aged 16 and over
Other qualifications2.6%
155 residents aged 16 and over
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)51.8%
3,095 residents aged 16 and over
Economically inactive46.5%
2,775 residents aged 16 and over
Economically active and a full-time student1.7%
102 residents aged 16 and over
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L13 Routine occupations17.1%
1,021 residents aged 16 and over
L4, L5 and L6 Lower managerial, administrative and professional occupations15.8%
944 residents aged 16 and over
L12 Semi-routine occupations14.6%
874 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed12.3%
735 residents aged 16 and over
L7 Intermediate occupations11.8%
703 residents aged 16 and over
L8 and L9 Small employers and own account workers8.2%
490 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations7.3%
437 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations7.2%
428 residents aged 16 and over
L15 Full-time students5.7%
343 residents aged 16 and over
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health42.4%
3,072 residents
Good health31.7%
2,298 residents
Fair health16.7%
1,213 residents
Bad health6.7%
487 residents
Very bad health2.5%
179 residents
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act74.8%
5,421 residents
Disabled under the Equality Act25.2%
1,828 residents
Mountain Ash · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is not deprived in any dimension38.3%
1,266 households
Household is deprived in one dimension33.5%
1,106 households
Household is deprived in two dimensions21.1%
696 households
Household is deprived in three dimensions6.9%
229 households
Household is deprived in four dimensions0.2%
7 households
Mountain Ash · 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 Rhondda Cynon Taf

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.