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The population stood at 163,723 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 — Knowsley

163,723, latest 2025 (+1.2% year on year, from 161,714).

The population stood at 163,723 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 145,903 in 2011; the latest reading is 12% above that.

Show the numbers (35 periods)
Population estimate — Knowsley, every published period
PeriodValue
2025163,723
2024161,714
2023159,191
2022157,023
2021154,978
2020153,408
2019151,793
2018150,042
2017148,567
2016147,928
2015147,300
2014146,562
2013146,370
2012146,227
2011145,903
2010146,398
2009147,070
2008147,822
2007148,188
2006148,788
2005148,900
2004149,216
2003149,795
2002150,506
2001151,238
2000151,392
1999151,837
1998153,168
1997152,655
1996152,714
1995152,737
1994152,719
1993153,752
1992153,882
1991155,135

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 — Knowsley
163,723 for Knowsley, 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/knowsley/population-estimate

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