Thuin: map, population and postcodes

About Thuin

Thuin is a municipality in the province of Hainaut in Wallonia, Belgium. On 1 January 2026 it had 14,916 inhabitants on an area of 77.1 km², a population density of 193 inhabitants per km². That is lower than the average of 359 per km² in Hainaut and lower than the Belgian average of 387 per km².

By population, Thuin ranks 251st of Belgium’s 565 municipalities and 27th of the 69 municipalities in Hainaut. By area it ranks 127th in Belgium.

The official language is French.

Population of Thuin 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 Thuin grew by 422 inhabitants (+2.9%), from 14,494 to 14,916. In the last year it changed by +52. The highest figure in this period was in 2023.

For population growth since 2016, Thuin ranks 389th of 565. Over the same period the province of Hainaut changed by +2.3% and Belgium by +5.3%.