UK public data, by local authority district
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The population stood at 145,734 in 2025. That is 1.0% 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 — Kensington and Chelsea

145,734, latest 2025 (-1.0% year on year, from 147,255).

The population stood at 145,734 in 2025. That is 1.0% lower than a year earlier. The series peaked at 168,375 in 2005; the latest figure is 13.4% below that peak. Its low point was 139,997 in 1994; the latest reading is 4% above that.

Show the numbers (35 periods)
Population estimate — Kensington and Chelsea, every published period
PeriodValue
2025145,734
2024147,255
2023149,049
2022147,887
2021144,266
2020144,874
2019146,805
2018148,471
2017149,651
2016152,708
2015156,149
2014156,178
2013156,823
2012157,240
2011158,251
2010160,463
2009161,893
2008162,579
2007162,883
2006165,245
2005168,375
2004165,752
2003165,268
2002163,827
2001162,199
2000154,661
1999147,678
1998143,140
1997142,096
1996141,099
1995140,603
1994139,997
1993141,532
1992142,237
1991143,626

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 — Kensington and Chelsea
145,734 for Kensington and Chelsea, 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/kensington-and-chelsea/population-estimate

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