Place CheckerOfficial local evidence

Census 2021 neighbourhood · W02000379

St Mellons West

St Mellons West is a Census neighbourhood of about 6,468 residents in Cardiff. This is a statistical area, not an administrative boundary or a postcode district.

Area evidence brief for Cardiff
6,468

Usual residents

ONS Census 2021 · MSOA

2,583

Households

ONS Census 2021 · MSOA

5,981.1

Residents per km²

ONS Census 2021 · MSOA

33.4%

Households owning their home

ONS Census 2021 · tenure

31.9%

Households with no car or van

ONS Census 2021 · car availability

22.7%

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.

Frankley, Birmingham9,433 residents · 41.3% owned · 34.9% no carBreightmet North, Bolton8,575 residents · 38.1% owned · 37.9% no carSheldon North, Birmingham8,955 residents · 50.5% owned · 31.9% no carKitts Green, Birmingham8,517 residents · 43.6% owned · 36.6% no carPerry Common - College Road, Birmingham9,603 residents · 44.1% owned · 35.5% no carWoodthorpe, Sheffield10,975 residents · 32.1% owned · 39.7% no car

Most similar within Cardiff

The closest matches in the same local authority.

Caerau East, Cardiff6,643 residents · 45.3% owned · 33.9% no carEly East, Cardiff7,810 residents · 33.4% owned · 41.4% no car

Census 2021 · Census neighbourhood (MSOA)

Life in St Mellons West

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

Tenure

Social rented53.1%
1,372 households
Owned33.4%
862 households
Private rented12.7%
327 households
Shared ownership0.5%
12 households
Lives rent free0.4%
10 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Semi-detached41%
1,060 households
Terraced34.5%
892 households
In a purpose-built block of flats or tenement14%
362 households
Detached9.9%
256 households
Part of a converted or shared house, including bedsits0.3%
9 households
In a commercial building, for example, in an office building, hotel or over a shop0.2%
4 households
Part of another converted building, for example, former school, church or warehouse0.1%
2 households
A caravan or other mobile or temporary structure0%
0 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household46%
1,191 households
No cars or vans in household31.9%
826 households
2 cars or vans in household17.3%
447 households
3 or more cars or vans in household4.8%
123 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms41.5%
1,074 households
2 bedrooms35.3%
913 households
1 bedroom12.5%
323 households
4 or more bedrooms10.7%
278 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household65.1%
1,686 households
One-person household30.2%
782 households
Other household types4.6%
120 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Household size

1 person in household30.2%
782 households
2 people in household28%
723 households
3 people in household18.8%
486 households
4 people in household13.6%
352 households
5 people in household5.8%
149 households
6 people in household2.3%
60 households
7 people in household0.8%
21 households
8 or more people in household0.5%
13 households
0 people in household0%
0 households
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1526.3%
1,700 residents
15–2919.3%
1,247 residents
30–4422.1%
1,430 residents
45–6421.6%
1,394 residents
65 and over10.8%
696 residents
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White78.9%
5,101 residents
Black, Black British, Black Welsh, Caribbean or African6.8%
442 residents
Mixed or Multiple ethnic groups6.4%
415 residents
Asian, Asian British or Asian Welsh5.4%
348 residents
Other ethnic group2.5%
161 residents
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

No qualifications29.2%
1,358 residents aged 16 and over
Level 4 qualifications or above22.7%
1,054 residents aged 16 and over
Level 2 qualifications14.5%
676 residents aged 16 and over
Level 3 qualifications13.8%
644 residents aged 16 and over
Level 1 and entry level qualifications12.4%
576 residents aged 16 and over
Apprenticeship4.6%
216 residents aged 16 and over
Other qualifications2.8%
128 residents aged 16 and over
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)51.2%
2,381 residents aged 16 and over
Economically inactive46.5%
2,164 residents aged 16 and over
Economically active and a full-time student2.2%
104 residents aged 16 and over
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L12 Semi-routine occupations16.8%
782 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed16.6%
772 residents aged 16 and over
L13 Routine occupations15.7%
729 residents aged 16 and over
L4, L5 and L6 Lower managerial, administrative and professional occupations13.2%
615 residents aged 16 and over
L7 Intermediate occupations11%
511 residents aged 16 and over
L15 Full-time students9.2%
426 residents aged 16 and over
L8 and L9 Small employers and own account workers6.8%
316 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations5.7%
267 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations5.1%
236 residents aged 16 and over
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health43.8%
2,836 residents
Good health31.5%
2,038 residents
Fair health14.8%
957 residents
Bad health7.3%
470 residents
Very bad health2.6%
167 residents
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act75.8%
4,905 residents
Disabled under the Equality Act24.2%
1,563 residents
St Mellons West · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is deprived in one dimension33.5%
866 households
Household is not deprived in any dimension31%
801 households
Household is deprived in two dimensions23.5%
608 households
Household is deprived in three dimensions11.1%
286 households
Household is deprived in four dimensions1%
27 households
St Mellons West · 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 Cardiff

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.