Census 2021 neighbourhood · W02000375

Pentwyn

Pentwyn is a Census neighbourhood of about 7,315 residents in Cardiff. This is a statistical area, not an administrative boundary or a postcode district.

Area evidence brief for Cardiff
7,315

Usual residents

ONS Census 2021 · MSOA

2,854

Households

ONS Census 2021 · MSOA

3,452.8

Residents per km²

ONS Census 2021 · MSOA

53.9%

Households owning their home

ONS Census 2021 · tenure

22.2%

Households with no car or van

ONS Census 2021 · car availability

31.3%

Adults with a degree or above

ONS Census 2021 · qualifications

Census 2021 · Census neighbourhood (MSOA)

Life in Pentwyn

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

Tenure

Owned53.9%
1,537 households
Social rented28.2%
805 households
Private rented17.4%
496 households
Lives rent free0.3%
9 households
Shared ownership0.2%
7 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Accommodation type

Terraced42.1%
1,201 households
Semi-detached29.8%
849 households
In a purpose-built block of flats or tenement20.8%
592 households
Detached7%
201 households
Part of a converted or shared house, including bedsits0.2%
6 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%
2 households
A caravan or other mobile or temporary structure0%
0 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Car or van availability

1 car or van in household47.9%
1,367 households
2 cars or vans in household23.8%
679 households
No cars or vans in household22.2%
634 households
3 or more cars or vans in household6.1%
174 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Number of bedrooms

3 bedrooms53.7%
1,532 households
2 bedrooms21.2%
605 households
4 or more bedrooms18%
515 households
1 bedroom7.1%
202 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Household composition

Single family household65.6%
1,872 households
One-person household27.6%
789 households
Other household types6.8%
194 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Household size

2 people in household30.5%
870 households
1 person in household27.7%
789 households
3 people in household17.1%
488 households
4 people in household15.7%
447 households
5 people in household5.9%
167 households
6 people in household1.9%
55 households
7 people in household0.9%
26 households
8 or more people in household0.4%
10 households
0 people in household0%
0 households
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Age

Under 1523.4%
1,714 residents
15–2920.2%
1,480 residents
30–4421.2%
1,550 residents
45–6421.2%
1,550 residents
65 and over14%
1,023 residents
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Ethnic group

White76.8%
5,619 residents
Asian, Asian British or Asian Welsh8.2%
599 residents
Other ethnic group6.6%
484 residents
Black, Black British, Black Welsh, Caribbean or African4.4%
324 residents
Mixed or Multiple ethnic groups4%
289 residents
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Highest qualification

Level 4 qualifications or above31.3%
1,713 residents aged 16 and over
No qualifications21.2%
1,160 residents aged 16 and over
Level 2 qualifications14.7%
803 residents aged 16 and over
Level 3 qualifications14.7%
803 residents aged 16 and over
Level 1 and entry level qualifications9.6%
523 residents aged 16 and over
Apprenticeship5.1%
282 residents aged 16 and over
Other qualifications3.5%
192 residents aged 16 and over
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Economic activity

Economically active (excluding full-time students)57.3%
3,138 residents aged 16 and over
Economically inactive40.3%
2,205 residents aged 16 and over
Economically active and a full-time student2.5%
135 residents aged 16 and over
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Occupational class (NS-SeC)

L4, L5 and L6 Lower managerial, administrative and professional occupations17.9%
983 residents aged 16 and over
L12 Semi-routine occupations14.1%
772 residents aged 16 and over
L13 Routine occupations13.5%
739 residents aged 16 and over
L7 Intermediate occupations12.4%
677 residents aged 16 and over
L14.1 and L14.2 Never worked and long-term unemployed11.4%
622 residents aged 16 and over
L15 Full-time students9.2%
506 residents aged 16 and over
L1, L2 and L3 Higher managerial, administrative and professional occupations8.7%
477 residents aged 16 and over
L8 and L9 Small employers and own account workers7.4%
406 residents aged 16 and over
L10 and L11 Lower supervisory and technical occupations5.4%
295 residents aged 16 and over
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

General health

Very good health47.1%
3,449 residents
Good health31.8%
2,329 residents
Fair health13.7%
1,001 residents
Bad health5.7%
419 residents
Very bad health1.6%
118 residents
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Disability

Not disabled under the Equality Act79.2%
5,791 residents
Disabled under the Equality Act20.8%
1,524 residents
Pentwyn · Census neighbourhood (MSOA) · ONS Census 2021

Household deprivation

Household is not deprived in any dimension44.6%
1,272 households
Household is deprived in one dimension32.5%
927 households
Household is deprived in two dimensions17.5%
500 households
Household is deprived in three dimensions5.2%
148 households
Household is deprived in four dimensions0.2%
7 households
Pentwyn · 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.