Average household size in United Kingdom

United Kingdom: Average household size was 2.3 Average in 2018. ▬ Flat

Latest (2018)
2.3 Average
Change on year
unchanged
World rank
22nd
of 47 countries
All-time high
2.4 Average
in 2007
All-time low
2.3 Average
in 2005
Years of data
14
2005–2018

Average household size in United Kingdom, 2005–2018

00.511.522.52005201120182005: 2.3 Average2006: 2.3 Average2007: 2.4 Average2008: 2.4 Average2009: 2.4 Average2010: 2.3 Average2011: 2.3 Average2012: 2.3 Average2013: 2.3 Average2014: 2.3 Average2015: 2.3 Average2016: 2.3 Average2017: 2.3 Average2018: 2.3 Average

Source: Eurostat. Measured in Average.

Analysis

United Kingdom recorded 2.3 Average for average household size in 2018. That is the lowest value across all 14 years on record.

Compared with earlier readings it is down 4.2% over ten years.

Over the whole period, average household size in United Kingdom peaked at 2.4 Average in 2007 and was at its lowest, 2.3 Average, in 2005.

That places United Kingdom 22nd out of 47 countries with data for 2018, putting it in the middle of the range.

Average household size in United Kingdom, year by year

Annual values for Average household size in United Kingdom, 2005 to 2018.
Year Average Change
2005 2.3 Average
2006 2.3 Average +0.0%
2007 2.4 Average +4.3%
2008 2.4 Average +0.0%
2009 2.4 Average +0.0%
2010 2.3 Average -4.2%
2011 2.3 Average +0.0%
2012 2.3 Average +0.0%
2013 2.3 Average +0.0%
2014 2.3 Average +0.0%
2015 2.3 Average +0.0%
2016 2.3 Average +0.0%
2017 2.3 Average +0.0%
2018 2.3 Average +0.0%

Averages by decade

DecadeAverage LowestHighest Years
2000s 2.36 Average 2.3 Average 2.4 Average 5
2010s 2.3 Average 2.3 Average 2.3 Average 9

Countries ranked near United Kingdom

  1. 22 Czechia 2.3 Average compare
  2. 22 European Union (EU6-1958, EU9-1973, EU10-1981, EU12-1986, EU15-1995, EU25-2004, EU27-2007, EU28-2013, EU27-2020) 2.3 Average compare
  3. 22 Hungary 2.3 Average compare
  4. 22 Luxembourg 2.3 Average compare
  5. 22 United Kingdom of Great Britain and Northern Ireland 2.3 Average compare

See the full ranking of 53 places →

More population data for United Kingdom

All data for United Kingdom →

Frequently asked questions

What is average household size in United Kingdom?
Average household size in United Kingdom was 2.3 Average in 2018, according to Eurostat.
What is the highest average household size recorded in United Kingdom?
The highest recorded value was 2.4 Average in 2007.
What is the lowest average household size recorded in United Kingdom?
The lowest recorded value was 2.3 Average in 2005.
How does United Kingdom rank for average household size?
United Kingdom ranks 22nd out of 47 countries with data for 2018.
Is average household size rising or falling in United Kingdom?
Over the last ten years it is down 4.2%. The long-run trend across the full record is flat.
Where does this United Kingdom 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 United Kingdom. Statizoid, drawing on Eurostat. Retrieved 14 September 2026, from https://population.statizoid.com/stat/average-household-size/united-kingdom-2/

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About this data

Indicator
Average household size
Unit
Average
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
53 places, 997 data points, 2003–2025
Last refreshed