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Arr. Nivelles: population, economy and official figures

Arr. Nivelles is a arrondissement in Wallonia, Belgium. Arr. Nivelles had 416,504 residents on 1 January 2025, 11.2% of Wallonia and 3.50% of Belgium; 9th largest of 44 arrondissements in Belgium.

Population
416,504
2025
People per km²
379.1
2024
Median age
43.3
2025
Aged 65+
21.1%
2025
Area (km²)
1,097
2026

In depth

Is the population of Arr. Nivelles growing?

That is 5.6% more people than in 2015 (394,344).

Source: Eurostat · saved copy

How densely populated is Arr. Nivelles?

There were 379.1 people per square kilometre in 2024.

Source: Eurostat · saved copy

What is the median age in Arr. Nivelles?

The median age was 43.3 years in 2025, against 42.1 for Belgium; 21st highest of 44 arrondissements in Belgium.

Source: Eurostat · saved copy

How old is the population of Arr. Nivelles?

21.1% of residents were 65 or older and 15.8% were under 15 in 2025.

Source: Eurostat · saved copy

How many births and deaths are there in Arr. Nivelles?

In 2024 there were 3,268 live births and 3,788 deaths, a natural decrease of 520.

Source: Eurostat · saved copy

How big is Arr. Nivelles?

It covers 1,097 km².

Source: Eurostat · saved copy

Are people moving to Arr. Nivelles?

Net migration added 4.2 people per 1,000 residents in 2024, while births minus deaths gave a natural change of -1.3 per 1,000.

Source: Eurostat · saved copy

Figures come from Belgium'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 arrondissements in Wallonia

Up a level: Wallonia · all regions of Belgium · how local power works in Belgium

Sources

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