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The population stood at 68,607 in 2025. That is 0.4% lower than a year earlier.

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 — Isle of Anglesey

68,607, latest 2025 (-0.4% year on year, from 68,873).

The population stood at 68,607 in 2025. That is 0.4% lower than a year earlier. The series peaked at 69,964 in 2012; the latest figure is 1.9% below that peak. Its low point was 67,692 in 1998; the latest reading is 1% above that.

Show the numbers (35 periods)
Population estimate — Isle of Anglesey, every published period
PeriodValue
202568,607
202468,873
202369,127
202269,034
202168,937
202068,794
201968,278
201868,539
201768,617
201668,826
201569,415
201469,761
201369,880
201269,964
201169,913
201069,833
200969,884
200869,916
200769,700
200669,388
200569,095
200468,753
200368,140
200267,879
200167,806
200067,898
199967,978
199867,692
199768,109
199668,592
199568,426
199469,187
199369,772
199269,379
199169,123

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 — Isle of Anglesey
68,607 for Isle of Anglesey, 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/isle-of-anglesey/population-estimate

See every dataset published for Isle of Anglesey

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