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Belgium · region

Wallonia population 2026

Wallonie

Wallonia has 3,727,515 people on the latest official figure, for 1 January 2025, 13,659 more than a year earlier (+0.37%). It is 2nd of Belgium’s 3 regions by population, home to 31.4% of Belgium’s people.

If last year’s change continues: about 3.7 million by 1 July 2026. That is our arithmetic, not an official figure.

Wallonia in numbers

Population
3.7 million 1 January 2025
Change in a year
+0.37% +13,659 people
Change since 2020
+1.84% from 3.7 million
Share of Belgium
31.4% 2nd of 3 regions
Population density
221per km² 16,844 km²

That is about as many people as Eritrea (3.7 million).

Population of Wallonia by year

Population of Wallonia
3.7M
› Show the numbers as a table
YearPopulation
20123,559,017
20133,576,524
20143,586,142
20153,600,164
20163,617,833
20173,626,571
20183,633,803
20193,643,996
20203,660,071
20213,663,729
20223,679,181
20233,701,649
20243,713,856
20253,727,515
YearPopulationChange
2025 3,727,515 +13,659
2024 3,713,856 +12,207
2023 3,701,649 +22,468
2022 3,679,181 +15,452
2021 3,663,729 +3,658
2020 3,660,071 +16,075
2019 3,643,996 +10,193
2018 3,633,803 +7,232
2017 3,626,571 +8,738
2016 3,617,833 +17,669
2015 3,600,164 +14,022
2014 3,586,142 +9,618
2013 3,576,524 +17,507
2012 3,559,017 –

Wallonia among Belgium’s regions

Full ranking →
Regions of Belgium by population
#
1 Flanders6,884,271+0.66%
2 Wallonia3,727,515+0.37%
3 Brussels-Capital Region1,271,709+0.58%

Largest cities in Wallonia

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

  1. Charleroi200,132
  2. Liège195,278
  3. Namur110,939
  4. Mons95,299
  5. La Louvière76,668
  6. Tournai69,554

Questions

What is the population of Wallonia in 2026?
The latest official figure is 3,727,515, for 1 January 2025 (Eurostat). If last year’s change continues, Wallonia would have about 3.7 million people by 1 July 2026; that is our arithmetic, not an official figure. Eurostat updates regional populations once a year.

Is Wallonia’s population growing or shrinking?
It grew by 13,659 people (+0.37%) in the latest year, and has changed +1.84% since 2020.

How does Wallonia rank in Belgium?
Wallonia is 2nd of Belgium’s 3 regions, with 31.4% of the people. Flanders is the largest, with 6.9 million.

What is the population density of Wallonia?
About 221 people per km², on 16,844 km². Total area, Wikidata.

What is the largest city in Wallonia?
Charleroi, with about 200 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 Belgium, 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: Wallonia population, Eurostat, 1 January 2025. GlobeMetrics, https://globemetrics.org/world-population/belgium/wallonia/

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