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Merthyr Tydfil and Aberdare

Constituency

South Wales. About 100,531 people in 245 square kilometres.

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Population by constituency

Census 2021, England and Wales

Under 93k114k or more

Merthyr Tydfil and Aberdare had 99,671 usual residents at the census.

Population
99,671
288th 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
19.7%
301st highest of 650
ONS Census 2021 · 2021
Aged under 15
17.7%
238th highest of 650
ONS Census 2021 · 2021

How Merthyr Tydfil and Aberdare compares

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

Merthyr Tydfil and AberdareMiddle
Population650 constituencys, UK · 2021
Population: every constituency in UK650 areas from 26,159 to 151,876. The middle area is 100,988. Merthyr Tydfil and Aberdare is 99,671.
99,671288th 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%. Merthyr Tydfil and Aberdare 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%. Merthyr Tydfil and Aberdare is 19.7%.
19.7%joint 301st 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%. Merthyr Tydfil and Aberdare is 17.7%.
17.7%joint 238th highest

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

Figures for the whole of Rhondda Cynon Taf

Most of Merthyr Tydfil and Aberdare lies in Rhondda Cynon Taf. These figures are published for the whole of Rhondda Cynon Taf, not for constituencies, so they describe the council and not Merthyr Tydfil and Aberdare itself. See Rhondda Cynon Taf

Average house price
£164,192
Up 4.7% in a year
HM Land Registry · Jul 2026
Median full-time pay
£34,837
56th lowest of 348
ONS earnings survey · 2025
House price to pay
4.7×
34th most affordable of 348
Worked out by Open Index
Female life expectancy
81.3years
UK 83.0 years
ONS life expectancy · 2022 to 2024
Merthyr Tydfil and Aberdare in brief

Merthyr Tydfil and Aberdare had 99,671 usual residents at the census.

62.6% of residents in Merthyr Tydfil and Aberdare were aged 15 to 64 at the census.

19.7% of residents in Merthyr Tydfil and Aberdare were aged 65 or over at the census.

17.7% of residents in Merthyr Tydfil and Aberdare were aged under 15 at the census.