Caerphilly

Key figures

12 of 13 measures have a published figure for Caerphilly · no figure for band d council tax as a share of pay. Each figure is the publisher’s own, for the period named beside it.

Why the population is changing

The ONS breaks the year’s population change into its components (Year to mid-2025). These are its published figures for Caerphilly, not our estimates.

• 1,504 births and 1,934 deaths: natural change reduced the population by 430.
• Moves within the UK (net) added 427 people.
• International migration (net) reduced the population by 149.
• The ONS’s balancing item (“Other”, mainly armed forces and prisoner adjustments) reduced the figure by 2.
• Altogether the population fell by 154 over the year (the sum of the components above — our addition of the ONS’s published figures).

Each component is a series in its own right: births, deaths, moves within the UK and international migration.

Population change, year by year

The same decomposition for every published year in Caerphilly: births and deaths, net moves within the UK, net international migration, and the ONS’s balancing item.

Years to mid-2024 are the ONS’s rebased back series, made consistent with Census 2021 — its figures deliberately differ from the estimates published at the time. Every cell is a published figure; the total is the sum of net moves, natural change and other, which is our addition. A dash is a year the source does not publish for this area, never a zero.

Rates per 1,000 residents

The same population flows, adjusted for Caerphilly’s size, so they can be compared with any other area’s: each year’s flow divided by the population that mid-year, times 1,000.

A Civometry calculation, not a published figure: ONS publishes these flows and the population, but not the rates. Net rates are signed — below zero means more left than arrived. Rates are crude, not age-standardised, so areas with very different age structures still differ for reasons size cannot remove. Each link shows the full recipe and every year.

Pay against housing costs

How pay in Caerphilly moved over its latest published year, beside how the cost of buying and renting moved over theirs. The three series come from different publishers on different timetables, so each row covers its own year, named in the row.

Pay rose faster than both the house price and the rent over these periods.

Levels are the publishers’ own (ONS ASHE median annual pay for full-time employees living in the area; HM Land Registry UK House Price Index; ONS Price Index of Private Rents). The percentage changes are Civometry arithmetic on the two published values in each row. Pay is a survey of employees and says nothing about a particular household; one year is weather, not climate.

Who runs the council

Labour (2026) — Labour 42, Plaid Cymru 19, Other and independent 7, Green 1 of 69 seats.

Not an official statistic. Compiled by Open Council Data UK, an independent project, not by any government department: no official body publishes council political control. Councils are matched to GSS codes by name here; county councils and districts abolished before the current boundaries are not included. This is the one dataset on the site that is not read from an official publication, and every page that shows it says so. Source: Open Council Data UK (CC0).

Between the censuses

How Caerphilly’s religion, ethnic-group and country-of-birth make-up changed between the 2011 and 2021 censuses, category by category. The two censuses compared.

Crime

18,535 recorded offences in the 12 months to June 2026, 105.3 per 1,000 residents. Full crime profile, by category and month.

Published for this area

• Median annual pay, full-time employees, by area of residence2025 · up 10.8% on a year earlier · ONS, published 23 October 2025£35,367
• Births by local authorityYear to mid-2025 · ONS, published 29 July 20261,504people
• Census 2011 country of birthCensus 2011 · ONS, published 30 January 2013178,806people
• Census 2021 country of birthCensus 2021 · ONS, published 2 November 2022175,948people
• Census 2011 ethnic group (detailed)Census 2011 · ONS, published 2 September 2026178,806people
• Census 2021 ethnic group (detailed)Census 2021 · ONS, published 2 September 2026175,955people
• Census 2011 ethnic group (five broad groups)Census 2011 · ONS, published 2 September 2026178,806people
• Census 2021 ethnic group (five broad groups)Census 2021 · ONS, published 2 September 2026175,955people
• Census 2021 ethnic group by age bandCensus 2021 · ONS, published 2 September 2026175,950people
• Census 2011 usual residentsCensus 2011 · ONS, published 2 September 2026178,806people
• Census 2021 usual residentsCensus 2021 · ONS, published 2 September 2026175,952people
• Census 2011 religionCensus 2011 · ONS, published 2 September 2026178,806people
• Census 2021 religionCensus 2021 · ONS, published 2 September 2026175,953people
• People claiming unemployment-related benefitsJuly 2026 · up 2.2% on a year earlier · ONS, published 18 August 20263,680people
• Claimants as a proportion of residents aged 16 to 64July 2026 · up 0.1 points on a year earlier · ONS, published 18 August 20263.4%
• Deaths by local authorityYear to mid-2025 · ONS, published 29 July 20261,934people
• Mean domestic electricity consumption per meter2024 · DESNZ, published 18 December 20252,868kWh a year
• Mean domestic gas consumption per meter2024 · DESNZ, published 5 May 202610,984kWh a year
• House price annual changeJune 2026 · up 2.9 points on a year earlier · HM Land Registry, published 20 August 20265.9%
• Average house priceJune 2026 · up 5.9% on a year earlier · HM Land Registry, published 20 August 2026£197,272
• Net internal migration by local authorityYear to mid-2025 · ONS, published 29 July 2026427people
• International migration into a local authorityYear to mid-2025 · ONS, published 29 July 2026564people
• Net international migration by local authorityYear to mid-2025 · ONS, published 29 July 2026-149people
• International migration out of a local authorityYear to mid-2025 · ONS, published 29 July 2026713people
• Births minus deaths by local authorityYear to mid-2025 · ONS, published 29 July 2026-430people
• Other population change by local authorityYear to mid-2025 · ONS, published 29 July 2026-2people
• Population by local authorityMid-2024 · up 0.1% on a year earlier · ONS, published 26 September 2025176,865people
• Private rent annual changeJuly 2026 · down 0.2 points on a year earlier · ONS, published 19 August 20268.4%
• Average private rent a monthJuly 2026 · up 8.3% on a year earlier · ONS, published 19 August 2026£743
• Median weekly pay, full-time employees, by area of residence2025 · up 4.9% on a year earlier · ONS, published 23 October 2025£710

National figures that apply here

These are not measured for Caerphilly; they are the figure for the nation or the UK, shown because they apply to everyone in it.

• Average Band D council tax (England average)Year ending March 2027 · up 4.9%£2,392
• Unemployment rate (UK)2026 Q2 · up 0.2 points4.9%
• Universal Credit caseload (Great Britain)Year ending March 2025 · up 16.3%5,473,000households
• Persistent absence (England)2024/25 academic year · down 1.8 points18.1%
• Average annual electricity bill (UK)2025 · down 1.3%£1,069

Then and now

The first and last years published for Caerphilly, and the difference between the two. Both figures are published for this area; the difference is those two numbers subtracted, which you can check by hand.

• £21,1832008→£35,3672025

  Median annual pay, full-time employees, by area of residence

  In Caerphilly, median annual pay, full-time employees, by area of residence rose from £21,183 in 2008 to £35,367 in 2025, a change of £14,184 or 67.0%, in cash terms, not adjusted for inflation (ONS).

  How this figure was worked out

  £35,367 in 2025 − £21,183 in 2008 = £14,184, which is 67.0% of the figure for 2008.

  18 published years spanning 17 years, from ONS. Years before the current series come from Median annual pay, full-time employees, by area of residence, 2002 to 2023, held as a separate series so the two are never mixed inside one figure. Cash terms: these are the amounts as published, not adjusted for inflation.

  In Caerphilly, median annual pay, full-time employees, by area of residence rose from £21,183 in 2008 to £35,367 in 2025, a change of £14,184 or 67.0%, in cash terms, not adjusted for inflation (ONS).

  Copy with source

• £3982008→£7102025

  Median weekly pay, full-time employees, by area of residence

  In Caerphilly, median weekly pay, full-time employees, by area of residence rose from £398 in 2008 to £710 in 2025, a change of £311 or 78.2%, in cash terms, not adjusted for inflation (ONS).

  How this figure was worked out

  £710 in 2025 − £398 in 2008 = £311, which is 78.2% of the figure for 2008.

  The two ends are rounded for display. The published figures are 709.80 and 398.40, and 709.80 − 398.40 = 311.40.

  18 published years spanning 17 years, from ONS. Years before the current series come from Median weekly pay, full-time employees, by area of residence, 2002 to 2023, held as a separate series so the two are never mixed inside one figure. Cash terms: these are the amounts as published, not adjusted for inflation.

  In Caerphilly, median weekly pay, full-time employees, by area of residence rose from £398 in 2008 to £710 in 2025, a change of £311 or 78.2%, in cash terms, not adjusted for inflation (ONS).

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• -102Year to mid-2012→427Year to mid-2025

  Net internal migration by local authority

  In Caerphilly, net internal migration by local authority rose from -102 in Year to mid-2012 to 427 in Year to mid-2025, a change of 529 or 518.6% (ONS).

  How this figure was worked out

  427 in Year to mid-2025 − -102 in Year to mid-2012 = 529, which is 518.6% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from Internal migration net by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, net internal migration by local authority rose from -102 in Year to mid-2012 to 427 in Year to mid-2025, a change of 529 or 518.6% (ONS).

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• 158Year to mid-2012→564Year to mid-2025

  International migration into a local authority

  In Caerphilly, international migration into a local authority rose from 158 in Year to mid-2012 to 564 in Year to mid-2025, a change of 406 or 257.0% (ONS).

  How this figure was worked out

  564 in Year to mid-2025 − 158 in Year to mid-2012 = 406, which is 257.0% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from International migration in by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, international migration into a local authority rose from 158 in Year to mid-2012 to 564 in Year to mid-2025, a change of 406 or 257.0% (ONS).

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• 156Year to mid-2012→713Year to mid-2025

  International migration out of a local authority

  In Caerphilly, international migration out of a local authority rose from 156 in Year to mid-2012 to 713 in Year to mid-2025, a change of 557 or 357.1% (ONS).

  How this figure was worked out

  713 in Year to mid-2025 − 156 in Year to mid-2012 = 557, which is 357.1% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from International migration out by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, international migration out of a local authority rose from 156 in Year to mid-2012 to 713 in Year to mid-2025, a change of 557 or 357.1% (ONS).

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• 2Year to mid-2012→-149Year to mid-2025

  Net international migration by local authority

  In Caerphilly, net international migration by local authority fell from 2 in Year to mid-2012 to -149 in Year to mid-2025, a change of 151 or 7550.0% (ONS).

  How this figure was worked out

  -149 in Year to mid-2025 − 2 in Year to mid-2012 = −151, which is 7550.0% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from International migration net by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, net international migration by local authority fell from 2 in Year to mid-2012 to -149 in Year to mid-2025, a change of 151 or 7550.0% (ONS).

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• 2,081Year to mid-2012→1,504Year to mid-2025

  Births by local authority

  In Caerphilly, births by local authority fell from 2,081 in Year to mid-2012 to 1,504 in Year to mid-2025, a change of 577 or 27.7% (ONS).

  How this figure was worked out

  1,504 in Year to mid-2025 − 2,081 in Year to mid-2012 = −577, which is 27.7% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from Births by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, births by local authority fell from 2,081 in Year to mid-2012 to 1,504 in Year to mid-2025, a change of 577 or 27.7% (ONS).

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• 1,670Year to mid-2012→1,934Year to mid-2025

  Deaths by local authority

  In Caerphilly, deaths by local authority rose from 1,670 in Year to mid-2012 to 1,934 in Year to mid-2025, a change of 264 or 15.8% (ONS).

  How this figure was worked out

  1,934 in Year to mid-2025 − 1,670 in Year to mid-2012 = 264, which is 15.8% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from Deaths by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, deaths by local authority rose from 1,670 in Year to mid-2012 to 1,934 in Year to mid-2025, a change of 264 or 15.8% (ONS).

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• 411Year to mid-2012→-430Year to mid-2025

  Births minus deaths by local authority

  In Caerphilly, births minus deaths by local authority fell from 411 in Year to mid-2012 to -430 in Year to mid-2025, a change of 841 or 204.6% (ONS).

  How this figure was worked out

  -430 in Year to mid-2025 − 411 in Year to mid-2012 = −841, which is 204.6% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from Natural change by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, births minus deaths by local authority fell from 411 in Year to mid-2012 to -430 in Year to mid-2025, a change of 841 or 204.6% (ONS).

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• -530Year to mid-2012→-2Year to mid-2025

  Other population change by local authority

  In Caerphilly, other population change by local authority rose from -530 in Year to mid-2012 to -2 in Year to mid-2025, a change of 528 or 99.6% (ONS).

  How this figure was worked out

  -2 in Year to mid-2025 − -530 in Year to mid-2012 = 528, which is 99.6% of the figure for Year to mid-2012.

  14 published years spanning 13 years, from ONS. Years before the current series come from Other population change by local authority, 2012 to 2024, held as a separate series so the two are never mixed inside one figure.

  In Caerphilly, other population change by local authority rose from -530 in Year to mid-2012 to -2 in Year to mid-2025, a change of 528 or 99.6% (ONS).

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Compare Caerphilly with another place

Every figure both areas publish, side by side, from its own publisher with the period named:

• Caerphilly and Birmingham
• Caerphilly and Leeds
• Caerphilly and North Yorkshire
• Caerphilly and Somerset
• Caerphilly and Cornwall
• Caerphilly and Buckinghamshire

Or open any two areas as /compare/places/<area>/<area> — the address carries the whole comparison.

Nearby areas

The closest other local authorities, each with its own report card and a side-by-side comparison:

• Blaenau Gwent · compare
• Cardiff · compare
• Merthyr Tydfil · compare
• Newport · compare
• Powys · compare
• Rhondda Cynon Taf · compare

Areas like Caerphilly

The local authorities whose published rents, pay, house prices, council tax and claimant count sit closest to Caerphilly’s, wherever they are in the UK. Computed from the figures, not curated.

• Chesterfield · compare
• Conwy · compare
• Bassetlaw · compare
• Rotherham · compare
• Pembrokeshire · compare
• North Lincolnshire · compare

Since you moved here

Pick the year you arrived, and see what every series published for Caerphilly said then and says now, with the periods named. Caerphilly since you moved here, or read the whole run year by year.

Where these figures come from

Every figure above is published by the body named here, for the release named here. Figures marked as a Civometry calculation are arithmetic on those published figures and are not official statistics.

Not yet published here

Income, employment, benefits by area, health, education and religion for Caerphilly are on the way where an open official source exists; where one does not, the data gaps register says why. Local claimant counts are behind a login.