Rixensart: map, population and postcodes

About Rixensart

Rixensart is a municipality in the province of Walloon Brabant in Wallonia, Belgium. On 1 January 2026 it had 22,973 inhabitants on an area of 17.5 km², a population density of 1,315 inhabitants per km². That is higher than the average of 380 per km² in Walloon Brabant and higher than the Belgian average of 387 per km².

By population, Rixensart ranks 143rd of Belgium’s 565 municipalities and 7th of the 27 municipalities in Walloon Brabant. By area it ranks 499th in Belgium.

The official language is French.

Population of Rixensart since 2016

Population on 1 January, 2016–2026. The bars start above zero to make the change visible. Source: Statbel.

Between 1 January 2016 and 1 January 2026 the population of Rixensart grew by 845 inhabitants (+3.8%), from 22,128 to 22,973. In the last year it changed by −79. The highest figure in this period was in 2023.

For population growth since 2016, Rixensart ranks 341st of 565. Over the same period the province of Walloon Brabant changed by +5.1% and Belgium by +5.3%.