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The population stood at 190,570 in 2025. That is 1.2% higher than a year earlier. That is the highest value in the published series, which begins in 1991.

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 — Chelmsford

190,570, latest 2025 (+1.2% year on year, from 188,328).

The population stood at 190,570 in 2025. That is 1.2% higher than a year earlier. That is the highest value in the published series, which begins in 1991. Its low point was 153,509 in 1991; the latest reading is 24% above that.

Show the numbers (35 periods)
Population estimate — Chelmsford, every published period
PeriodValue
2025190,570
2024188,328
2023185,919
2022183,444
2021181,827
2020180,488
2019179,882
2018178,017
2017177,102
2016175,137
2015173,397
2014172,128
2013170,481
2012169,301
2011168,491
2010167,441
2009166,208
2008165,047
2007164,381
2006163,879
2005163,570
2004162,505
2003160,360
2002158,686
2001157,269
2000156,331
1999155,894
1998155,325
1997156,103
1996157,033
1995156,736
1994155,804
1993155,455
1992154,051
1991153,509

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 — Chelmsford
190,570 for Chelmsford, 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/chelmsford/population-estimate

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