UK public data, by local authority district
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The population stood at 176,078 in 2025. That is 0.1% lower than a year earlier.

Why the caveats matter

Every figure carries the publisher's own caveats. Where a statistic is published for a wider area than the one you clicked, or where the publisher itself flags it as unreliable, the page says so rather than quietly rounding it off.

The UK's four nations publish separately, so some figures stop at a border: house sale prices cover England and Wales, road collisions Great Britain. Pupil absence is published for England, but not every English district individually — some are reported only as part of their wider county. An area with fewer datasets isn't missing data — either its nation publishes that statistic through a different body, or (pupil absence only) its own district isn't reported separately.

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Population estimate — Caerphilly

176,078, latest 2025 (-0.1% year on year, from 176,232).

The population stood at 176,078 in 2025. That is 0.1% lower than a year earlier. The series peaked at 178,782 in 2011; the latest figure is 1.5% below that peak. Its low point was 167,385 in 1996; the latest reading is 5% above that.

Show the numbers (35 periods)
Population estimate — Caerphilly, every published period
PeriodValue
2025176,078
2024176,232
2023176,277
2022176,001
2021175,999
2020176,805
2019176,735
2018177,277
2017177,610
2016178,013
2015178,269
2014178,513
2013178,236
2012178,563
2011178,782
2010178,101
2009177,159
2008176,259
2007174,987
2006173,741
2005172,777
2004172,361
2003171,363
2002170,776
2001169,546
2000169,045
1999168,566
1998167,921
1997167,532
1996167,385
1995168,186
1994169,559
1993170,243
1992170,129
1991170,615

What these terms mean

Mid-year estimate
A modelled count of the population on 30 June, updated between censuses. It is an estimate, not a headcount. Source
Local authority district
The council area a statistic is published for -- 361 across the UK. In England these are boroughs, districts and unitary authorities; in Scotland, council areas; in Wales, principal areas; in Northern Ireland, districts.

Before you use these figures

  • Mid-year estimate, not a census count: This is a modelled mid-year (30 June) estimate, not a direct headcount. It is rebased periodically against the latest UK census results -- the current series was rebased to the 2021/2022 censuses, replacing previously published estimates for 2011 to 2022. Figures for the same year can therefore change between publications as later data becomes available.
  • Unrounded, but not precise to the individual: Figures are published unrounded to enable further calculation, but ONS is explicit that small estimates should not be read as accurate to a specific person -- they are produced using statistical models and disclosure-control methods, not a direct count.

Cite this figure:

Population estimate — Caerphilly
176,078 for Caerphilly, 2025
Caveats: Mid-year estimate, not a census count; Unrounded, but not precise to the individual
StatsMapped last confirmed this figure unchanged on 5 Sep 2026.
Source: Office for National Statistics, Population Estimates (via Nomis)
https://statsmapped.com/united-kingdom/local-authority/caerphilly/population-estimate

See every dataset published for Caerphilly

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