UK public data, by local authority district
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The population stood at 444,218 in 2025. That is 0.7% 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 — West Northamptonshire

444,218, latest 2025 (+0.7% year on year, from 441,277).

The population stood at 444,218 in 2025. That is 0.7% higher than a year earlier. That is the highest value in the published series, which begins in 1991. Its low point was 317,542 in 1991; the latest reading is 40% above that.

Show the numbers (35 periods)
Population estimate — West Northamptonshire, every published period
PeriodValue
2025444,218
2024441,277
2023438,462
2022430,756
2021426,707
2020422,559
2019422,168
2018417,242
2017411,732
2016405,019
2015397,939
2014391,024
2013385,699
2012380,827
2011376,008
2010373,456
2009371,268
2008368,454
2007365,907
2006362,435
2005357,438
2004353,110
2003351,689
2002349,123
2001345,893
2000343,409
1999342,215
1998340,110
1997336,689
1996331,981
1995327,551
1994323,749
1993321,934
1992320,013
1991317,542

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.
  • Not adjusted for population: This figure — 444,218 — is well outside the typical range for other areas currently publishing this dataset (median about 148,095 across 349 other areas). This is a raw count, not adjusted for population — a larger area is expected to report a larger number regardless of anything unusual happening there. Not itself a sign of a data problem.
  • Not adjusted for population, 2024: This area's 2024 figure was 441,277, well outside the typical range for other areas that reported for 2024 (median about 148,242 across 360 other areas). This figure is a raw count, not adjusted for population — a larger area is expected to report a larger number regardless of anything unusual happening there. Not itself a sign of a data problem.

Cite this figure:

Population estimate — West Northamptonshire
444,218 for West Northamptonshire, 2025
Caveats: Mid-year estimate, not a census count; Unrounded, but not precise to the individual; Not adjusted for population; Not adjusted for population, 2024
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/west-northamptonshire/population-estimate

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