Which has higher average household size, Iceland or Spain?

Iceland, at 2.5 Average against 2.5 Average in Spain as of 2020.

How many years of comparable data are there for Iceland and Spain?

17 years are reported by both, from 2004 to 2020.

Eurostat, published as Average household size. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iceland

2.5 Average

in 2020

Spain

2.5 Average

in 2025

Iceland rank

10th

Spain rank

10th

Iceland currently reports 2.5 Average against 2.5 Average in Spain, a difference of 0 Average.

The two have swapped places 2 times across 17 shared years of data; in 2004 it was Spain ahead.

Iceland ranks 10th and Spain ranks 10th of 38 countries.

Spain has averaged higher in every one of the 3 decades both report.

Decade	Iceland	Spain	Difference	Ahead
2000s	2.48 Average	2.72 Average	0.2333 Average	Spain
2010s	2.43 Average	2.53 Average	0.1 Average	Spain
2020s	2.5 Average	2.5 Average	0 Average	—

Averages of every year both report within each decade.

Which has higher average household size, Iceland or Spain?: Iceland, at 2.5 Average against 2.5 Average in Spain as of 2020.
What is the difference in average household size between Iceland and Spain?: 0 Average, with Iceland ahead.
How many years of comparable data are there for Iceland and Spain?: 17 years are reported by both, from 2004 to 2020.
How do Iceland and Spain rank globally for average household size?: Iceland ranks 10th and Spain ranks 10th of 38 countries.
Where does this data come from?: Eurostat, published as Average household size. Statizoid refreshes it automatically from the source and publishes the full history for both places.