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Caerphilly

Constituency

South east Wales. About 96,966 people in 141 square kilometres.

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Population by constituency

Census 2021, England and Wales

Under 93k114k or more

Caerphilly had 96,381 usual residents at the census.

Population
96,381
185th lowest of 650
ONS Census 2021 · 2021
Aged 15 to 64
62.6%
280th lowest of 650
ONS Census 2021 · 2021
Aged 65 and over
19.8%
289th highest of 650
ONS Census 2021 · 2021
Aged under 15
17.6%
251st highest of 650
ONS Census 2021 · 2021

How Caerphilly compares

Each dot is a constituency. The black line marks the middle one.

CaerphillyMiddle
Population650 constituencys, UK · 2021
Population: every constituency in UK650 areas from 26,159 to 151,876. The middle area is 100,988. Caerphilly is 96,381.
96,381185th lowest
Aged 15 to 64650 constituencys, UK · 2021
Aged 15 to 64: every constituency in UK650 areas from 52.3% to 82.1%. The middle area is 63.1%. Caerphilly is 62.6%.
62.6%joint 280th lowest
Aged 65 and over650 constituencys, UK · 2021
Aged 65 and over: every constituency in UK650 areas from 5.0% to 34.6%. The middle area is 19.3%. Caerphilly is 19.8%.
19.8%joint 289th highest
Aged under 15650 constituencys, UK · 2021
Aged under 15: every constituency in UK650 areas from 9.7% to 24.9%. The middle area is 17.0%. Caerphilly is 17.6%.
17.6%joint 251st highest

Every constituency ranked: population, aged 15 to 64, aged 65 and over and aged under 15.

Figures for the whole of Caerphilly

Most of Caerphilly lies in Caerphilly. These figures are published for the whole of Caerphilly, not for constituencies, so they describe the council and not Caerphilly itself. See Caerphilly

Average house price
£197,542
Up 4.2% in a year
HM Land Registry · Jul 2026
Median full-time pay
£35,367
78th lowest of 348
ONS earnings survey · 2025
House price to pay
5.6×
65th most affordable of 348
Worked out by Open Index
Female life expectancy
80.6years
UK 83.0 years
ONS life expectancy · 2022 to 2024
Caerphilly in brief

Caerphilly had 96,381 usual residents at the census.

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

19.8% of residents in Caerphilly were aged 65 or over at the census.

17.6% of residents in Caerphilly were aged under 15 at the census.