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Ille-et-Vilaine: population, economy and official figures

Ille-et-Vilaine is a department in Brittany, France. Ille-et-Vilaine had 1,138,869 residents on 1 January 2025, 32.6% of Brittany and 1.65% of France; 22nd largest of 101 departments in France.

Population
1,138,869
2025
People per km²
166.5
2024
Median age
40.2
2025
Aged 65+
19.3%
2025
Area (km²)
6,839
2026

In depth

Is the population of Ille-et-Vilaine growing?

That is 9.2% more people than in 2015 (1,042,884).

Source: Eurostat · saved copy

How densely populated is Ille-et-Vilaine?

There were 166.5 people per square kilometre in 2024.

Source: Eurostat · saved copy

What is the median age in Ille-et-Vilaine?

The median age was 40.2 years in 2025, against 42.8 for France; 87th highest of 101 departments in France.

Source: Eurostat · saved copy

How old is the population of Ille-et-Vilaine?

19.3% of residents were 65 or older and 17.1% were under 15 in 2025.

Source: Eurostat · saved copy

How many births and deaths are there in Ille-et-Vilaine?

In 2024 there were 10,702 live births and 9,153 deaths, a natural increase of 1,549.

Source: Eurostat · saved copy

How big is Ille-et-Vilaine?

It covers 6,839 km².

Source: Eurostat · saved copy

Are people moving to Ille-et-Vilaine?

Net migration added 6.6 people per 1,000 residents in 2024, while births minus deaths gave a natural change of +1.4 per 1,000.

Source: Eurostat · saved copy

Figures come from France's own official statistics and from Eurostat's regional statistics for NUTS 3 areas. Comparisons with the EU average use purchasing power standards (PPS), which adjust for price differences.

Other departments in Brittany

Up a level: Brittany · all regions of France · how local power works in France

Sources

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