Average household size in Belgium

Belgium: Average household size was 2.2 in 2025. ▬ Flat

Latest (2025)
2.2
Change on year
down 4.3%
World rank
30th
of 49 countries
All-time high
2.3
in 2003
All-time low
2.2
in 2025
Years of data
23
2003–2025

Average household size in Belgium, 2003–2025

00.511.522.52003201420252003: 2.32004: 2.32005: 2.32006: 2.32007: 2.32008: 2.32009: 2.32010: 2.32011: 2.32012: 2.32013: 2.32014: 2.32015: 2.32016: 2.32017: 2.32018: 2.32019: 2.32020: 2.32021: 2.32022: 2.32023: 2.32024: 2.32025: 2.2

Source: Eurostat.

Analysis

In 2025, average household size in Belgium stood at 2.2. That is the lowest value across all 23 years on record.

That represents a change of down 4.3% on the previous year and down 4.3% over ten years.

Over the whole period, average household size in Belgium peaked at 2.3 in 2003 and was at its lowest, 2.2, in 2025.

That places Belgium 30th out of 49 countries with data for 2025, putting it in the middle of the range.

Average household size in Belgium, year by year

Annual values for Average household size in Belgium, 2003 to 2025.
Year Value Change
2003 2.3 —
2004 2.3 +0.0%
2005 2.3 +0.0%
2006 2.3 +0.0%
2007 2.3 +0.0%
2008 2.3 +0.0%
2009 2.3 +0.0%
2010 2.3 +0.0%
2011 2.3 +0.0%
2012 2.3 +0.0%
2013 2.3 +0.0%
2014 2.3 +0.0%
2015 2.3 +0.0%
2016 2.3 +0.0%
2017 2.3 +0.0%
2018 2.3 +0.0%
2019 2.3 +0.0%
2020 2.3 +0.0%
2021 2.3 +0.0%
2022 2.3 +0.0%
2023 2.3 +0.0%
2024 2.3 +0.0%
2025 2.2 -4.3%

Belgium compared with similar countries

  • Belgium's 2.2 is below the median for Europe & Central Asia, which is 2.3, 96% of the median. (34 countries reporting)
  • Belgium's 2.2 is below the median for high income countries, which is 2.3, 96% of the median. (31 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2000s 2.3 2.3 2.3 7
2010s 2.3 2.3 2.3 10
2020s 2.28 2.2 2.3 6

Countries ranked near Belgium

  1. 30 Austria 2.2 compare
  2. 30 Bulgaria 2.2 compare
  3. 30 Switzerland 2.2 compare
  4. 30 Euro area (EA11-1999, EA12-2001, EA13-2007, EA15-2008, EA16-2009, EA17-2011, EA18-2014, EA19-2015, EA20-2023, EA21-2026) 2.2 compare
  5. 30 Italy 2.2 compare
  6. 30 Latvia 2.2 compare
  7. 30 Latvia 2.2 compare

See the full ranking of 55 places →

More population data for Belgium

All data for Belgium →

Frequently asked questions

What is average household size in Belgium?
Average household size in Belgium was 2.2 in 2025, according to Eurostat.
What is the highest average household size recorded in Belgium?
The highest recorded value was 2.3 in 2003.
What is the lowest average household size recorded in Belgium?
The lowest recorded value was 2.2 in 2025.
How does Belgium rank for average household size?
Belgium ranks 30th out of 49 countries with data for 2025.
Is average household size rising or falling in Belgium?
Over the last ten years it is down 4.3%. The long-run trend across the full record is flat.
Where does this Belgium data come from?
The figures come from Eurostat, published as part of Average household size. Statizoid updates them automatically from the source API.

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Average household size in Belgium. Statizoid, drawing on Eurostat. Retrieved 12 November 2026, from https://population.statizoid.com/stat/average-household-size/belgium/

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About this data

Indicator
Average household size
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
55 places, 1,028 data points, 2003–2025
Last refreshed