Dilbeek: map, population and postcodes

About Dilbeek

Dilbeek is a municipality in the province of Flemish Brabant in Flanders, Belgium. On 1 January 2026 it had 45,111 inhabitants on an area of 41.4 km², a population density of 1,089 inhabitants per km². That is higher than the average of 571 per km² in Flemish Brabant and higher than the Belgian average of 387 per km².

By population, Dilbeek ranks 41st of Belgium’s 565 municipalities and 3rd of the 63 municipalities in Flemish Brabant. By area it ranks 288th in Belgium.

The official language is Dutch.

Population of Dilbeek 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 Dilbeek grew by 3,661 inhabitants (+8.8%), from 41,450 to 45,111. In the last year it changed by +42.

For population growth since 2016, Dilbeek ranks 74th of 565. Over the same period the province of Flemish Brabant changed by +7.9% and Belgium by +5.3%.