Average household size in Belgium
Belgium: Average household size was 2.2 Average in 2025. ▬ Flat
Latest (2025)
2.2 Average
Change on year
down 4.3%
World rank
23rd
of 38 countries
All-time high
2.3 Average
in 2003
All-time low
2.2 Average
in 2025
Years of data
23
2003–2025
Average household size in Belgium, 2003–2025
Source: Eurostat. Measured in Average.
Analysis
In 2025, average household size in Belgium stood at 2.2 Average. 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 Average in 2003 and was at its lowest, 2.2 Average, in 2025.
That places Belgium 23rd out of 38 countries with data for 2025, putting it in the middle of the range.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 2.3 Average | 2.3 Average | 2.3 Average | 7 |
| 2010s | 2.3 Average | 2.3 Average | 2.3 Average | 10 |
| 2020s | 2.28 Average | 2.2 Average | 2.3 Average | 6 |
Countries ranked near Belgium
- 23 Austria 2.2 Average compare
- 23 Bulgaria 2.2 Average compare
- 23 Switzerland 2.2 Average compare
- 23 Euro area (EA11-1999, EA12-2001, EA13-2007, EA15-2008, EA16-2009, EA17-2011, EA18-2014, EA19-2015, EA20-2023, EA21-2026) 2.2 Average compare
- 23 Italy 2.2 Average compare
- 23 Latvia 2.2 Average compare
More population data for Belgium
- World population growth -0.2% (2100)
- Population density 365.29 people per km² (2100)
- Number of children under 5, by world region 461,216 people (2100)
- Population growth rate, by level of development -0.2% (2100)
- Total fertility rate vs. contraceptive prevalence 1.44 births per woman (2024)
- Fertility rate vs. unmet need for contraception 1.44 births per woman (2024)
- Refugees by country of asylum 183,551 people (2024)
- Total fertility rate vs. wanted fertility rate 1.44 births per woman (2024)
- Fertility rate vs. Share of people who are religious 1.38 live births per woman (2023)
- Fertility rate accounting for survival until childbearing age 1.37 children per women (2023)
Frequently asked questions
- What is average household size in Belgium?
- Average household size in Belgium was 2.2 Average in 2025, according to Eurostat.
- What is the highest average household size recorded in Belgium?
- The highest recorded value was 2.3 Average in 2003.
- What is the lowest average household size recorded in Belgium?
- The lowest recorded value was 2.2 Average in 2025.
- How does Belgium rank for average household size?
- Belgium ranks 23rd out of 38 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.
Download this data
CSV · JSON — 23 observations, free to reuse under CC BY 4.0 (Eurostat).