Average household size by country
Countries reporting
47
Highest
3.7 Average
Albania
Lowest
1.8 Average
Lithuania
Median
2.3 Average
Years covered
23
2003–2025
Data points
998
What the numbers show
Average household size is currently reported for 47 countries. The highest value is 3.7 Average in Albania; the lowest is 1.8 Average in Lithuania.
The median across all reporting countries is 2.3 Average, and the mean is 2.39 Average.
The gap between the highest and lowest reporting country is a factor of about 2.
Over the past decade 3 countries rose and 33 fell. The largest increase was in Slovakia (up 10.7%), and the largest decrease in Lithuania (down 21.7%).
Average household size: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Albania | 3.7 Average | 2023 | unchanged | flat |
| 2 | Slovakia | 3.1 Average | 2025 | up 10.7% | rising |
| 2 | Slovakia | 3.1 Average | 2025 | up 10.7% | rising |
| 2 | Türkiye | 3.1 Average | 2025 | down 11.4% | falling |
| 5 | North Macedonia | 3 Average | 2024 | down 18.9% | falling |
| 6 | Poland | 2.8 Average | 2025 | unchanged | flat |
| 6 | Poland | 2.8 Average | 2025 | unchanged | flat |
| 6 | Montenegro | 2.8 Average | 2024 | down 15.2% | falling |
| 9 | Ireland | 2.7 Average | 2025 | unchanged | falling |
| 10 | Serbia | 2.6 Average | 2025 | down 10.3% | falling |
| 10 | Croatia | 2.6 Average | 2025 | down 7.1% | falling |
| 10 | Croatia | 2.6 Average | 2025 | down 7.1% | falling |
| 13 | Romania | 2.5 Average | 2025 | down 7.4% | falling |
| 13 | Iceland | 2.5 Average | 2020 | up 4.2% | flat |
| 13 | Spain | 2.5 Average | 2025 | unchanged | falling |
| 13 | Cyprus | 2.5 Average | 2025 | down 7.4% | falling |
| 17 | Greece | 2.4 Average | 2025 | down 7.7% | falling |
| 17 | Malta | 2.4 Average | 2025 | down 7.7% | falling |
| 17 | Portugal | 2.4 Average | 2025 | down 4.0% | falling |
| 17 | Slovenia | 2.4 Average | 2025 | down 4.0% | falling |
| 17 | Slovenia | 2.4 Average | 2025 | down 4.0% | falling |
| 22 | Luxembourg | 2.3 Average | 2025 | down 4.2% | falling |
| 22 | Hungary | 2.3 Average | 2025 | unchanged | falling |
| 22 | United Kingdom | 2.3 Average | 2018 | down 4.2% | flat |
| 22 | Czechia | 2.3 Average | 2025 | down 4.2% | falling |
| 22 | United Kingdom | 2.3 Average | 2018 | down 4.2% | flat |
| 22 | European Union (EU6-1958, EU9-1973, EU10-1981, EU12-1986, EU15-1995, EU25-2004, EU27-2007, EU28-2013, EU27-2020) | 2.3 Average | 2019 | down 4.2% | falling |
| 28 | Austria | 2.2 Average | 2025 | unchanged | falling |
| 28 | 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 | 2021 | down 4.3% | flat |
| 28 | Latvia | 2.2 Average | 2025 | down 8.3% | falling |
| 28 | Belgium | 2.2 Average | 2025 | down 4.3% | flat |
| 28 | Bulgaria | 2.2 Average | 2025 | down 12.0% | falling |
| 28 | Latvia | 2.2 Average | 2025 | down 8.3% | falling |
| 28 | Switzerland | 2.2 Average | 2024 | unchanged | falling |
| 28 | Italy | 2.2 Average | 2025 | down 8.3% | falling |
| 36 | Netherlands | 2.1 Average | 2025 | down 4.5% | falling |
| 36 | Estonia | 2.1 Average | 2025 | down 4.5% | falling |
| 36 | Estonia | 2.1 Average | 2025 | down 4.5% | falling |
| 36 | France | 2.1 Average | 2025 | down 4.5% | falling |
| 36 | Netherlands | 2.1 Average | 2025 | down 4.5% | falling |
| 41 | Sweden | 2 Average | 2025 | unchanged | falling |
| 41 | Germany | 2 Average | 2025 | unchanged | flat |
| 41 | Norway | 2 Average | 2025 | unchanged | falling |
| 44 | Finland | 1.9 Average | 2025 | down 5.0% | falling |
| 44 | Denmark | 1.9 Average | 2025 | down 5.0% | flat |
| 46 | Lithuania | 1.8 Average | 2025 | down 21.7% | falling |
| 46 | Lithuania | 1.8 Average | 2025 | down 21.7% | falling |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- European Union - 28 countries (2013-2020) 2.3 Average
- European Union - 27 countries (2007-2013) 2.3 Average
- Euro area - 18 countries (2014) 2.3 Average
- European Union - 27 countries (from 2020) 2.3 Average
- Euro area – 20 countries (2023-2025) 2.2 Average
- Euro area - 19 countries (2015-2022) 2.2 Average