Census 2021 neighbourhood · W02000377

Pwll-mawr & St Mellons East

Pwll-mawr & St Mellons East is a Census neighbourhood of about 7,784 residents in Cardiff. This is a statistical area, not an administrative boundary or a postcode district.

Area evidence brief for Cardiff
7,784

Usual residents

ONS Census 2021 · MSOA

3,199

Households

ONS Census 2021 · MSOA

1,014.2

Residents per km²

ONS Census 2021 · MSOA

68.1%

Households owning their home

ONS Census 2021 · tenure

14.4%

Households with no car or van

ONS Census 2021 · car availability

33.0%

Adults with a degree or above

ONS Census 2021 · qualifications

Census 2021 · Census neighbourhood (MSOA)

Life in Pwll-mawr & St Mellons East

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

Tenure

Owned68.1%
2,180 households
Private rented17.4%
558 households
Social rented13.6%
435 households
Shared ownership0.7%
21 households
Lives rent free0.2%
5 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Semi-detached39.8%
1,272 households
Detached29.6%
946 households
Terraced22.7%
727 households
In a purpose-built block of flats or tenement5.5%
176 households
A caravan or other mobile or temporary structure1.9%
60 households
Part of a converted or shared house, including bedsits0.4%
12 households
In a commercial building, for example, in an office building, hotel or over a shop0.1%
2 households
Part of another converted building, for example, former school, church or warehouse0%
1 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household45.4%
1,452 households
2 cars or vans in household31.4%
1,004 households
No cars or vans in household14.4%
460 households
3 or more cars or vans in household8.8%
280 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms39.2%
1,253 households
2 bedrooms28.7%
916 households
4 or more bedrooms24.8%
794 households
1 bedroom7.3%
233 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household66.7%
2,129 households
One-person household28.6%
913 households
Other household types4.8%
152 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Household size

2 people in household33.2%
1,063 households
1 person in household28.6%
916 households
3 people in household18.5%
591 households
4 people in household13.1%
419 households
5 people in household4.6%
146 households
6 people in household1.5%
47 households
7 people in household0.3%
10 households
8 or more people in household0.2%
6 households
0 people in household0%
0 households
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1521%
1,632 residents
15–2919.1%
1,488 residents
30–4422.2%
1,724 residents
45–6424.7%
1,921 residents
65 and over13.1%
1,018 residents
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White84.9%
6,612 residents
Asian, Asian British or Asian Welsh5.7%
444 residents
Black, Black British, Black Welsh, Caribbean or African3.5%
272 residents
Mixed or Multiple ethnic groups3.4%
265 residents
Other ethnic group2.5%
191 residents
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

Level 4 qualifications or above33%
1,997 residents aged 16 and over
No qualifications18.4%
1,114 residents aged 16 and over
Level 3 qualifications16.6%
1,004 residents aged 16 and over
Level 2 qualifications14.1%
855 residents aged 16 and over
Level 1 and entry level qualifications10.1%
613 residents aged 16 and over
Apprenticeship4.9%
295 residents aged 16 and over
Other qualifications2.9%
173 residents aged 16 and over
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)63.6%
3,847 residents aged 16 and over
Economically inactive34.5%
2,087 residents aged 16 and over
Economically active and a full-time student1.9%
118 residents aged 16 and over
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L4, L5 and L6 Lower managerial, administrative and professional occupations21.7%
1,313 residents aged 16 and over
L7 Intermediate occupations14.1%
855 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations12.7%
767 residents aged 16 and over
L12 Semi-routine occupations12.4%
748 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed9.8%
590 residents aged 16 and over
L13 Routine occupations9.6%
583 residents aged 16 and over
L8 and L9 Small employers and own account workers7.6%
457 residents aged 16 and over
L15 Full-time students6.4%
386 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations5.8%
349 residents aged 16 and over
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health49.7%
3,868 residents
Good health31.5%
2,451 residents
Fair health12.4%
967 residents
Bad health4.7%
365 residents
Very bad health1.7%
133 residents
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act81.2%
6,322 residents
Disabled under the Equality Act18.8%
1,462 residents
Pwll-mawr & St Mellons East · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is not deprived in any dimension49.8%
1,594 households
Household is deprived in one dimension31.5%
1,007 households
Household is deprived in two dimensions14.4%
461 households
Household is deprived in three dimensions4.1%
132 households
Household is deprived in four dimensions0.1%
4 households
Pwll-mawr & St Mellons East · 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.

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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.