UK public data, by local authority district
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The population stood at 333,975 in 2025. That is 1.0% 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 — Northumberland

333,975, latest 2025 (+1.0% year on year, from 330,615).

The population stood at 333,975 in 2025. That is 1.0% higher than a year earlier. That is the highest value in the published series, which begins in 1991. Its low point was 305,521 in 1991; the latest reading is 9% above that.

Show the numbers (35 periods)
Population estimate — Northumberland, every published period
PeriodValue
2025333,975
2024330,615
2023327,366
2022324,293
2021321,532
2020318,490
2019318,027
2018316,153
2017315,663
2016314,327
2015314,188
2014315,274
2013315,013
2012315,924
2011316,278
2010315,463
2009314,489
2008314,057
2007312,960
2006311,375
2005310,752
2004310,140
2003309,448
2002308,499
2001307,363
2000307,348
1999307,490
1998307,241
1997306,756
1996305,804
1995305,931
1994306,545
1993306,129
1992306,086
1991305,521

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 — Northumberland
333,975 for Northumberland, 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/northumberland/population-estimate

See every dataset published for Northumberland

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