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The population stood at 107,188 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 — Spelthorne

107,188, latest 2025 (+0.7% year on year, from 106,453).

The population stood at 107,188 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 88,371 in 1991; the latest reading is 21% above that.

Show the numbers (35 periods)
Population estimate — Spelthorne, every published period
PeriodValue
2025107,188
2024106,453
2023104,701
2022103,700
2021103,036
2020102,304
2019102,062
2018101,151
2017100,819
2016100,461
201599,755
201499,057
201398,252
201297,163
201195,852
201094,848
200994,001
200893,182
200792,425
200691,512
200590,571
200490,127
200390,225
200290,292
200190,404
200090,511
199990,606
199889,240
199789,356
199689,255
199589,260
199489,357
199389,191
199289,064
199188,371

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 — Spelthorne
107,188 for Spelthorne, 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/spelthorne/population-estimate

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