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People and census in Caerphilly

Welsh council

South east Wales. 176,078 people in 277 square kilometres.

24 layers about people and census for Caerphilly, each at the level its publisher released it, with its own date and source.

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Population by output area

Census 2021, England and Wales

Under 129379 or more

Caerphilly’s 575 output areas range from 126 to 613.

What is the population of Caerphilly?

Caerphilly had 175,952 usual residents at the census.

Caerphilly is the 135th most populated of 361 in the UK.

Population

Council
175,952
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

Caerphilly had 175,952 usual residents at the census.

Caerphilly is the 135th most populated of 361 in the UK.

Open in mapSource and methodEvery council ranked
Population: Caerphilly among every council361 areas from 2,053 to 1,144,919. The middle area is 143,926. Caerphilly is 175,952.

Population estimate

Council
176,078
ONS population estimates · 2025

Caerphilly’s population was an estimated 176,078 in mid-2025.

The population fell 0.1% in the year to mid-2025.

Caerphilly is 137th most populated of 361 for population.

Open in mapSource and methodEvery council ranked
Population estimate: Caerphilly among every council361 areas from 2,299 to 1,176,960. The middle area is 148,772. Caerphilly is 176,078.

Aged 15 to 64

Council
62.6%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

62.6% of residents in Caerphilly were aged 15 to 64 at the census.

In Wales the figure is 62.2%.

Against Wales
1% higher62.2%
Open in mapSource and methodEvery council ranked
Aged 15 to 64: Caerphilly among every council361 areas from 53.9% to 79.6%. The middle area is 62.8%. Caerphilly is 62.6%.

Aged 65 and over

Council
20.1%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

20.1% of residents in Caerphilly were aged 65 or over at the census.

In Wales the figure is 21.3%.

Against Wales
6% lower21.3%
Open in mapSource and methodEvery council ranked
Aged 65 and over: Caerphilly among every council361 areas from 5.6% to 33.5%. The middle area is 19.7%. Caerphilly is 20.1%.

Aged under 15

Council
17.3%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

17.3% of residents in Caerphilly were aged under 15 at the census.

In Wales the figure is 16.5%.

Against Wales
5% higher16.5%
Open in mapSource and methodEvery council ranked
Aged under 15: Caerphilly among every council361 areas from 6.4% to 24.6%. The middle area is 16.9%. Caerphilly is 17.3%.

Born outside the UK

Council
2.9%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

2.9% of residents in Caerphilly were born outside the UK.

In Wales the figure is 6.9%.

Against Wales
58% lower6.9%
Open in mapSource and methodEvery council ranked
Born outside the UK: Caerphilly among every council361 areas from 2.6% to 56.1%. The middle area is 9.9%. Caerphilly is 2.9%.

Disability

Council
23.6%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

23.6% of residents in Caerphilly had their day-to-day activities limited by a long-term health problem or disability.

In Wales the figure is 21.6%.

Against Wales
9% higher21.6%
Open in mapSource and methodEvery council ranked
Disability: Caerphilly among every council361 areas from 10.7% to 29.3%. The middle area is 18.5%. Caerphilly is 23.6%.

Good or very good health

Council
75.8%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

75.8% of residents in Caerphilly said their health was good or very good.

In Wales the figure is 78.6%.

Against Wales
4% lower78.6%
Open in mapSource and methodEvery council ranked
Good or very good health: Caerphilly among every council361 areas from 73.6% to 89.3%. The middle area is 81.7%. Caerphilly is 75.8%.

Households

Council
76,257
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

Caerphilly had 76,257 households at the census.

Caerphilly is 129th highest of 361 for the number of households.

Open in mapSource and methodEvery council ranked
Households: Caerphilly among every council361 areas from 942 to 423,456. The middle area is 60,932. Caerphilly is 76,257.

Households without a car or van

Council
20.3%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

20.3% of households in Caerphilly had no car or van at the census.

In Wales the figure is 19.4%.

Against Wales
5% higher19.4%
Open in mapSource and methodEvery council ranked
Households without a car or van: Caerphilly among every council361 areas from 7.8% to 77.2%. The middle area is 18.6%. Caerphilly is 20.3%.

Owner-occupied homes

Council
67.8%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

67.8% of households in Caerphilly owned their home at the census.

In Wales the figure is 66.4%.

Against Wales
2% higher66.4%
Open in mapSource and methodEvery council ranked
Owner-occupied homes: Caerphilly among every council361 areas from 25.7% to 82.6%. The middle area is 67.3%. Caerphilly is 67.8%.

Population density

Council
634 per km²
Worked out by Open Index · 2021

Caerphilly had 634 people per square kilometre at the census.

In Wales the figure is 150 per km².

Worked out by Open Index from census population counts and the area of each place.

Against Wales
4.2 times150 per km²
Open in mapSource and methodEvery council ranked
Population density: Caerphilly among every council361 areas from 8 per km² to 15,696 per km². The middle area is 568 per km². Caerphilly is 634 per km².

Private rented homes

Council
13.3%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

13.3% of households in Caerphilly rented privately at the census.

In Wales the figure is 17.0%.

Against Wales
22% lower17.0%
Open in mapSource and methodEvery council ranked
Private rented homes: Caerphilly among every council361 areas from 5.7% to 48.3%. The middle area is 17.3%. Caerphilly is 13.3%.

Social rented homes

Council
18.8%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

18.8% of households in Caerphilly rented from a council or housing association at the census.

In Wales the figure is 16.5%.

Against Wales
14% higher16.5%
Open in mapSource and methodEvery council ranked
Social rented homes: Caerphilly among every council361 areas from 5.5% to 40.5%. The middle area is 14.6%. Caerphilly is 18.8%.

Degree-level qualifications

CouncilEngland, Wales and Northern Ireland only
25.3%
ONS Census 2021 and NISRA Census 2021 · 2021

25.3% of residents aged 16 and over in Caerphilly had a degree-level qualification at the census.

In Wales the figure is 31.5%.

Against Wales
20% lower31.5%
Open in mapSource and methodEvery council ranked
Degree-level qualifications: Caerphilly among every council329 areas from 18.2% to 74.2%. The middle area is 31.8%. Caerphilly is 25.3%.

Asian, Asian British or Asian Welsh

CouncilEngland and Wales only
0.9%
ONS Census 2021 · 2021

0.9% of residents in Caerphilly identified with the Asian, Asian British or Asian Welsh ethnic group.

In Wales the figure is 2.9%.

Against Wales
69% lower2.9%
Open in mapSource and methodEvery council ranked
Asian, Asian British or Asian Welsh: Caerphilly among every council318 areas from 0.3% to 47.3%. The middle area is 3.6%. Caerphilly is 0.9%.

Black, Black British, Black Welsh, Caribbean or African

CouncilEngland and Wales only
0.2%
ONS Census 2021 · 2021

0.2% of residents in Caerphilly identified with the Black, Black British, Black Welsh, Caribbean or African ethnic group.

In Wales the figure is 0.9%.

Against Wales
78% lower0.9%
Open in mapSource and methodEvery council ranked
Black, Black British, Black Welsh, Caribbean or African: Caerphilly among every council318 areas from 0.1% to 26.8%. The middle area is 1.1%. Caerphilly is 0.2%.

Mixed or Multiple ethnic groups

CouncilEngland and Wales only
1.0%
ONS Census 2021 · 2021

1.0% of residents in Caerphilly identified with a Mixed or Multiple ethnic group.

In Wales the figure is 1.6%.

Against Wales
38% lower1.6%
Open in mapSource and methodEvery council ranked
Mixed or Multiple ethnic groups: Caerphilly among every council318 areas from 0.7% to 8.1%. The middle area is 2.2%. Caerphilly is 1.0%.

Other ethnic group

CouncilEngland and Wales only
0.2%
ONS Census 2021 · 2021

0.2% of residents in Caerphilly identified with another ethnic group, including Arab.

In Wales the figure is 0.9%.

Against Wales
78% lower0.9%
Open in mapSource and methodEvery council ranked
Other ethnic group: Caerphilly among every council318 areas from 0.2% to 13.5%. The middle area is 0.9%. Caerphilly is 0.2%.

White ethnic groups

CouncilEngland and Wales only
97.7%
ONS Census 2021 · 2021

97.7% of residents in Caerphilly identified with a White ethnic group.

In Wales the figure is 93.8%.

Against Wales
4% higher93.8%
Open in mapSource and methodEvery council ranked
White ethnic groups: Caerphilly among every council318 areas from 30.8% to 98.2%. The middle area is 92.2%. Caerphilly is 97.7%.

Christian

CouncilEngland and Wales only
36.4%
ONS Census 2021 · 2021

36.4% of residents in Caerphilly said they were Christian.

In Wales the figure is 43.6%.

Against Wales
17% lower43.6%
Open in mapSource and methodEvery council ranked
Christian: Caerphilly among every council318 areas from 22.3% to 66.6%. The middle area is 47.9%. Caerphilly is 36.4%.

No religion

CouncilEngland and Wales only
56.7%
ONS Census 2021 · 2021

56.7% of residents in Caerphilly said they had no religion.

In Wales the figure is 46.5%.

Against Wales
22% higher46.5%
Open in mapSource and methodEvery council ranked
No religion: Caerphilly among every council318 areas from 10.6% to 56.7%. The middle area is 39.9%. Caerphilly is 56.7%.

Working mainly from home

CouncilEngland and Wales only
23.9%
ONS Census 2021 · 2021

23.9% of working residents in Caerphilly worked mainly from home in March 2021.

In Wales the figure is 25.6%.

Against Wales
7% lower25.6%
Open in mapSource and methodEvery council ranked
Working mainly from home: Caerphilly among every council318 areas from 10.6% to 67.3%. The middle area is 29.6%. Caerphilly is 23.9%.

Annual population change

Council
−0.1%
Worked out by Open Index · 2025

Caerphilly’s estimated population changed by −0.1% in the year to mid-2025.

Worked out by Open Index from the mid-year population estimates.

Open in mapSource and methodEvery council ranked
Annual population change: Caerphilly among every council361 areas from −3.5% to 2.4%. The middle area is 0.4%. Caerphilly is −0.1%.