UK public data, by local authority district
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The population stood at 299,486 in 2025. That is 0.2% 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 — Hounslow

299,486, latest 2025 (-0.2% year on year, from 300,047).

The population stood at 299,486 in 2025. That is 0.2% lower than a year earlier. The series peaked at 300,047 in 2024; the latest figure is 0.2% below that peak. Its low point was 201,756 in 1994; the latest reading is 48% above that.

Show the numbers (35 periods)
Population estimate — Hounslow, every published period
PeriodValue
2025299,486
2024300,047
2023297,085
2022290,151
2021288,164
2020289,773
2019289,652
2018285,430
2017281,117
2016278,601
2015275,097
2014270,773
2013265,547
2012260,584
2011254,927
2010249,236
2009243,366
2008237,907
2007233,454
2006228,126
2005223,776
2004219,440
2003216,498
2002216,888
2001215,976
2000214,731
1999214,298
1998212,445
1997210,146
1996206,034
1995203,691
1994201,756
1993201,992
1992201,987
1991203,917

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 — Hounslow
299,486 for Hounslow, 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/hounslow/population-estimate

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