Local authority · W06000002

Population in Gwynedd

Every population series published for Gwynedd, each over its full published span. A series that begins part-way along began then: nothing earlier is published for this area, and no gap is filled in.

Net internal migration by local authority

In Gwynedd, net internal migration by local authority rose from -277 in Year to mid-2012 to -31 in Year to mid-2025, a change of 246 or 88.8% (ONS).

Net internal migration by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour-5000500201520202025Year to mid-2012: -277 people · published 26 September 2025Year to mid-2013: -867 people · published 26 September 2025Year to mid-2014: -514 people · published 26 September 2025Year to mid-2015: -35 people · published 26 September 2025Year to mid-2016: -496 people · published 26 September 2025Year to mid-2017: 203 people · published 26 September 2025Year to mid-2018: 34 people · published 26 September 2025Year to mid-2019: 61 people · published 26 September 2025Year to mid-2020: 984 people · published 26 September 2025Year to mid-2021: -418 people · published 26 September 2025Year to mid-2022: 230 people · published 26 September 2025Year to mid-2023: 55 people · published 26 September 2025Year to mid-2024: -98 people · published 26 September 2025Year to mid-2025: -31 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from Internal migration net by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: -31 (Year to mid-2025). The national series and its methodology.

International migration into a local authority

In Gwynedd, international migration into a local authority rose from 1,301 in Year to mid-2012 to 1,417 in Year to mid-2025, a change of 116 or 8.9% (ONS).

International migration into a local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour01k2k3k201520202025Year to mid-2012: 1,301 people · published 26 September 2025Year to mid-2013: 1,158 people · published 26 September 2025Year to mid-2014: 1,117 people · published 26 September 2025Year to mid-2015: 1,309 people · published 26 September 2025Year to mid-2016: 1,586 people · published 26 September 2025Year to mid-2017: 1,262 people · published 26 September 2025Year to mid-2018: 1,053 people · published 26 September 2025Year to mid-2019: 1,263 people · published 26 September 2025Year to mid-2020: 1,355 people · published 26 September 2025Year to mid-2021: 618 people · published 26 September 2025Year to mid-2022: 1,801 people · published 26 September 2025Year to mid-2023: 3,006 people · published 26 September 2025Year to mid-2024: 2,329 people · published 26 September 2025Year to mid-2025: 1,417 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from International migration in by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 1,417 (Year to mid-2025). The national series and its methodology.

International migration out of a local authority

In Gwynedd, international migration out of a local authority rose from 676 in Year to mid-2012 to 1,315 in Year to mid-2025, a change of 639 or 94.5% (ONS).

International migration out of a local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour05001k201520202025Year to mid-2012: 676 people · published 26 September 2025Year to mid-2013: 635 people · published 26 September 2025Year to mid-2014: 668 people · published 26 September 2025Year to mid-2015: 550 people · published 26 September 2025Year to mid-2016: 855 people · published 26 September 2025Year to mid-2017: 694 people · published 26 September 2025Year to mid-2018: 937 people · published 26 September 2025Year to mid-2019: 913 people · published 26 September 2025Year to mid-2020: 768 people · published 26 September 2025Year to mid-2021: 427 people · published 26 September 2025Year to mid-2022: 644 people · published 26 September 2025Year to mid-2023: 607 people · published 26 September 2025Year to mid-2024: 1,018 people · published 26 September 2025Year to mid-2025: 1,315 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from International migration out by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 1,315 (Year to mid-2025). The national series and its methodology.

Net international migration by local authority

In Gwynedd, net international migration by local authority fell from 625 in Year to mid-2012 to 102 in Year to mid-2025, a change of 523 or 83.7% (ONS).

Net international migration by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour01k2k201520202025Year to mid-2012: 625 people · published 26 September 2025Year to mid-2013: 523 people · published 26 September 2025Year to mid-2014: 449 people · published 26 September 2025Year to mid-2015: 759 people · published 26 September 2025Year to mid-2016: 731 people · published 26 September 2025Year to mid-2017: 568 people · published 26 September 2025Year to mid-2018: 116 people · published 26 September 2025Year to mid-2019: 350 people · published 26 September 2025Year to mid-2020: 587 people · published 26 September 2025Year to mid-2021: 191 people · published 26 September 2025Year to mid-2022: 1,157 people · published 26 September 2025Year to mid-2023: 2,399 people · published 26 September 2025Year to mid-2024: 1,311 people · published 26 September 2025Year to mid-2025: 102 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from International migration net by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 102 (Year to mid-2025). The national series and its methodology.

Births by local authority

In Gwynedd, births by local authority fell from 1,385 in Year to mid-2012 to 963 in Year to mid-2025, a change of 422 or 30.5% (ONS).

Births by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour05001k201520202025Year to mid-2012: 1,385 people · published 26 September 2025Year to mid-2013: 1,251 people · published 26 September 2025Year to mid-2014: 1,209 people · published 26 September 2025Year to mid-2015: 1,128 people · published 26 September 2025Year to mid-2016: 1,222 people · published 26 September 2025Year to mid-2017: 1,134 people · published 26 September 2025Year to mid-2018: 1,131 people · published 26 September 2025Year to mid-2019: 1,061 people · published 26 September 2025Year to mid-2020: 1,048 people · published 26 September 2025Year to mid-2021: 985 people · published 26 September 2025Year to mid-2022: 1,057 people · published 26 September 2025Year to mid-2023: 978 people · published 26 September 2025Year to mid-2024: 979 people · published 26 September 2025Year to mid-2025: 963 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from Births by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 963 (Year to mid-2025). The national series and its methodology.

Deaths by local authority

In Gwynedd, deaths by local authority rose from 1,230 in Year to mid-2012 to 1,464 in Year to mid-2025, a change of 234 or 19.0% (ONS).

Deaths by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour05001k201520202025Year to mid-2012: 1,230 people · published 26 September 2025Year to mid-2013: 1,360 people · published 26 September 2025Year to mid-2014: 1,166 people · published 26 September 2025Year to mid-2015: 1,378 people · published 26 September 2025Year to mid-2016: 1,369 people · published 26 September 2025Year to mid-2017: 1,316 people · published 26 September 2025Year to mid-2018: 1,414 people · published 26 September 2025Year to mid-2019: 1,422 people · published 26 September 2025Year to mid-2020: 1,430 people · published 26 September 2025Year to mid-2021: 1,334 people · published 26 September 2025Year to mid-2022: 1,418 people · published 26 September 2025Year to mid-2023: 1,452 people · published 26 September 2025Year to mid-2024: 1,440 people · published 26 September 2025Year to mid-2025: 1,464 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from Deaths by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 1,464 (Year to mid-2025). The national series and its methodology.

Births minus deaths by local authority

In Gwynedd, births minus deaths by local authority fell from 155 in Year to mid-2012 to -501 in Year to mid-2025, a change of 656 or 423.2% (ONS).

Births minus deaths by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour-400-2000201520202025Year to mid-2012: 155 people · published 26 September 2025Year to mid-2013: -109 people · published 26 September 2025Year to mid-2014: 43 people · published 26 September 2025Year to mid-2015: -250 people · published 26 September 2025Year to mid-2016: -147 people · published 26 September 2025Year to mid-2017: -182 people · published 26 September 2025Year to mid-2018: -283 people · published 26 September 2025Year to mid-2019: -361 people · published 26 September 2025Year to mid-2020: -382 people · published 26 September 2025Year to mid-2021: -349 people · published 26 September 2025Year to mid-2022: -361 people · published 26 September 2025Year to mid-2023: -474 people · published 26 September 2025Year to mid-2024: -461 people · published 26 September 2025Year to mid-2025: -501 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from Natural change by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: -501 (Year to mid-2025). The national series and its methodology.

Other population change by local authority

In Gwynedd, other population change by local authority rose from -587 in Year to mid-2012 to 12 in Year to mid-2025, a change of 599 or 102.0% (ONS).

Other population change by local authority: Year to mid-2012 to Year to mid-2025CoalitionCoalitionConservativeConservativeConservativeConservativeConservativeLabour-600-400-2000201520202025Year to mid-2012: -587 people · published 26 September 2025Year to mid-2013: -583 people · published 26 September 2025Year to mid-2014: -585 people · published 26 September 2025Year to mid-2015: -638 people · published 26 September 2025Year to mid-2016: -762 people · published 26 September 2025Year to mid-2017: -666 people · published 26 September 2025Year to mid-2018: -619 people · published 26 September 2025Year to mid-2019: -595 people · published 26 September 2025Year to mid-2020: -593 people · published 26 September 2025Year to mid-2021: -532 people · published 26 September 2025Year to mid-2022: -9 people · published 26 September 2025Year to mid-2023: -5 people · published 26 September 2025Year to mid-2024: -3 people · published 26 September 2025Year to mid-2025: 12 people · published 29 July 2026

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Earlier years come from Other population change by local authority, 2012 to 2024, joined where the modern series has no figure; overlapping periods are never double-counted. Latest: 12 (Year to mid-2025). The national series and its methodology.

Population by local authority

In Gwynedd, population by local authority fell from 121,523 in Mid-2011 to 120,813 in Mid-2024, a change of 710 or 0.6% (ONS).

Population by local authority: Mid-2011 to Mid-2024CoalitionCoalitionConservativeConservativeConservativeConservativeConservative050k100k20152020Mid-2011: 121,523 people · published 26 September 2025Mid-2012: 121,439 people · published 26 September 2025Mid-2013: 120,403 people · published 26 September 2025Mid-2014: 119,796 people · published 26 September 2025Mid-2015: 119,632 people · published 26 September 2025Mid-2016: 118,958 people · published 26 September 2025Mid-2017: 118,881 people · published 26 September 2025Mid-2018: 118,129 people · published 26 September 2025Mid-2019: 117,584 people · published 26 September 2025Mid-2020: 118,180 people · published 26 September 2025Mid-2021: 117,072 people · published 26 September 2025Mid-2022: 118,089 people · published 26 September 2025Mid-2023: 120,064 people · published 26 September 2025Mid-2024: 120,813 people · published 26 September 2025

Published valueProvisional or revisedLatestShaded bands: governments (see labels)Hover or use arrow keys to read a value

ONS. Latest: 120,813 (Mid-2024). The national series and its methodology.

More on Gwynedd

Population in Gwynedd | Civometry