Average household size by country
Countries reporting
38
Highest
3.7 Average
Albania
Lowest
1.8 Average
Lithuania
Median
2.3 Average
Years covered
23
2003–2025
Data points
819
What the numbers show
Average household size is currently reported for 38 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 2.4 Average.
The gap between the highest and lowest reporting country is a factor of about 2.
Over the past decade 2 countries rose and 25 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 | Montenegro | 3.3 Average | 2023 | unchanged | flat |
| 3 | Türkiye | 3.1 Average | 2025 | down 11.4% | falling |
| 3 | Slovakia | 3.1 Average | 2025 | up 10.7% | rising |
| 5 | North Macedonia | 3 Average | 2024 | down 18.9% | falling |
| 6 | Poland | 2.8 Average | 2025 | unchanged | flat |
| 7 | Ireland | 2.7 Average | 2025 | unchanged | falling |
| 8 | Croatia | 2.6 Average | 2025 | down 7.1% | falling |
| 8 | Serbia | 2.6 Average | 2025 | down 10.3% | falling |
| 10 | Iceland | 2.5 Average | 2020 | up 4.2% | flat |
| 10 | Spain | 2.5 Average | 2025 | unchanged | falling |
| 10 | Cyprus | 2.5 Average | 2025 | down 7.4% | falling |
| 10 | Romania | 2.5 Average | 2025 | down 7.4% | falling |
| 14 | Greece | 2.4 Average | 2025 | down 7.7% | falling |
| 14 | Slovenia | 2.4 Average | 2025 | down 4.0% | falling |
| 14 | Malta | 2.4 Average | 2025 | down 7.7% | falling |
| 14 | Portugal | 2.4 Average | 2025 | down 4.0% | falling |
| 18 | Hungary | 2.3 Average | 2025 | unchanged | falling |
| 18 | United Kingdom | 2.3 Average | 2018 | down 4.2% | flat |
| 18 | Luxembourg | 2.3 Average | 2025 | down 4.2% | falling |
| 18 | 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 |
| 18 | Czechia | 2.3 Average | 2025 | down 4.2% | falling |
| 23 | Latvia | 2.2 Average | 2025 | down 8.3% | falling |
| 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 | 2021 | down 4.3% | flat |
| 23 | Italy | 2.2 Average | 2025 | down 8.3% | falling |
| 23 | Switzerland | 2.2 Average | 2024 | unchanged | falling |
| 23 | Bulgaria | 2.2 Average | 2025 | down 12.0% | falling |
| 23 | Belgium | 2.2 Average | 2025 | down 4.3% | flat |
| 23 | Austria | 2.2 Average | 2025 | unchanged | falling |
| 30 | Netherlands | 2.1 Average | 2025 | down 4.5% | falling |
| 30 | France | 2.1 Average | 2025 | down 4.5% | falling |
| 30 | Estonia | 2.1 Average | 2025 | down 4.5% | falling |
| 33 | Norway | 2 Average | 2025 | unchanged | falling |
| 33 | Sweden | 2 Average | 2025 | unchanged | falling |
| 33 | Germany | 2 Average | 2025 | unchanged | flat |
| 36 | Finland | 1.9 Average | 2025 | down 5.0% | falling |
| 36 | Denmark | 1.9 Average | 2025 | down 5.0% | flat |
| 38 | Lithuania | 1.8 Average | 2025 | down 21.7% | falling |