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France · region

Brittany population 2026

Bretagne

Brittany has 3,489,252 people on the latest official figure, for 1 January 2025, 19,541 more than a year earlier (+0.56%). It is 9th of France’s 18 regions by population, home to 5.1% of France’s people.

If last year’s change continues: about 3.5 million by 1 July 2026. That is our arithmetic, not an official figure.

Brittany in numbers

Population
3.5 million 1 January 2025
Change in a year
+0.56% +19,541 people
Change since 2020
+3.42% from 3.4 million
Share of France
5.1% 9th of 18 regions
Population density
128per km² 27,208 km²

That is about as many people as Mongolia (3.6 million).

Population of Brittany by year

Population of Brittany
3.5M
› Show the numbers as a table
YearPopulation
20123,237,097
20133,258,707
20143,276,543
20153,293,850
20163,306,529
20173,318,904
20183,335,414
20193,354,854
20203,373,835
20213,394,567
20223,422,845
20233,440,248
20243,469,711
20253,489,252
YearPopulationChange
2025 3,489,252 +19,541
2024 3,469,711 +29,463
2023 3,440,248 +17,403
2022 3,422,845 +28,278
2021 3,394,567 +20,732
2020 3,373,835 +18,981
2019 3,354,854 +19,440
2018 3,335,414 +16,510
2017 3,318,904 +12,375
2016 3,306,529 +12,679
2015 3,293,850 +17,307
2014 3,276,543 +17,836
2013 3,258,707 +21,610
2012 3,237,097 –

Brittany among France’s regions

Full ranking →
Regions of France by population
#
1 Île-de-France12,549,288+0.33%
2 Auvergne-Rhône-Alpes8,270,088+0.39%
3 Nouvelle-Aquitaine6,210,839+0.47%
4 Occitanie6,205,575+0.64%
5 Hauts-de-France5,974,447−0.16%
6 Grand Est5,550,155−0.13%
7 Provence-Alpes-Côte d'Azur5,285,125+0.62%
8 Pays de la Loire3,945,359+0.47%
9 Brittany3,489,252+0.56%
10 Normandy3,350,982+0.06%
11 Bourgogne-Franche-Comté2,796,878−0.12%
12 Centre-Val de Loire2,588,306+0.01%
13 La Réunion904,180+0.73%
14 Guadeloupe413,791−0.25%
15 Corsica362,253+0.95%
16 Martinique359,419−0.22%
17 Mayotte329,208+2.67%
18 French Guiana297,455+0.44%

Largest cities in Brittany

City proper, not the wider metro area; latest figure in GeoNames (CC BY 4.0), so years differ.

  1. Rennes227,830
  2. Brest144,899
  3. Quimper63,849
  4. Lorient58,112
  5. Vannes54,020
  6. Saint-Brieuc52,774

Questions

What is the population of Brittany in 2026?

The latest official figure is 3,489,252, for 1 January 2025 (Eurostat). If last year’s change continues, Brittany would have about 3.5 million people by 1 July 2026; that is our arithmetic, not an official figure. Eurostat updates regional populations once a year.

Is Brittany’s population growing or shrinking?

It grew by 19,541 people (+0.56%) in the latest year, and has changed +3.42% since 2020.

How does Brittany rank in France?

Brittany is 9th of France’s 18 regions, with 5.1% of the people. Île-de-France is the largest, with 12.5 million.

What is the population density of Brittany?

About 128 people per km², on 27,208 km². Total area, Wikidata.

What is the largest city in Brittany?

Rennes, with about 228 thousand people in the city proper. Metro areas are larger, and years differ (GeoNames).

Source and method

Eurostat, population on 1 January by NUTS region (demo_r_d2jan). Eurostat reuse policy (CC BY 4.0). Total area, Wikidata. Eurostat updates regional populations once a year. Ranks, shares and changes are our arithmetic on the published figures. National figures can differ from the UN’s projection for France, which uses a different method. The 2026 figure above carries last year’s change forward; it does not come from the source.

Cite this page: Brittany population, Eurostat, 1 January 2025. GlobeMetrics, https://globemetrics.org/world-population/france/brittany/

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