Zaventem: map, population and postcodes

About Zaventem

Zaventem is a municipality in the province of Flemish Brabant in Flanders, Belgium. On 1 January 2026 it had 37,518 inhabitants on an area of 27.8 km², a population density of 1,352 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, Zaventem ranks 59th of Belgium’s 565 municipalities and 6th of the 63 municipalities in Flemish Brabant. By area it ranks 413th in Belgium.

The official language is Dutch.

Population of Zaventem 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 Zaventem grew by 4,484 inhabitants (+13.6%), from 33,034 to 37,518. In the last year it changed by +247.

For population growth since 2016, Zaventem ranks 16th of 565. Over the same period the province of Flemish Brabant changed by +7.9% and Belgium by +5.3%.