Mons: map, population and postcodes

About Mons

Mons is a municipality in the province of Hainaut in Wallonia, Belgium. On 1 January 2026 it had 97,745 inhabitants on an area of 147.7 km², a population density of 662 inhabitants per km². That is higher than the average of 359 per km² in Hainaut and higher than the Belgian average of 387 per km².

By population, Mons ranks 12th of Belgium’s 565 municipalities and 2nd of the 69 municipalities in Hainaut. By area it ranks 24th in Belgium. Mons is the capital of Hainaut.

The official language is French.

Population of Mons 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 Mons grew by 2,781 inhabitants (+2.9%), from 94,964 to 97,745. In the last year it changed by +625.

For population growth since 2016, Mons ranks 385th of 565. Over the same period the province of Hainaut changed by +2.3% and Belgium by +5.3%.

Postcode	Places
7000	Mons
7011
7012	Jemappes, Flénu
7020
7021
7022	Harmignies, Harveng, Hyon, Mesvin, Nouvelles
7024	Ciply
7030	Saint-Symphorien
7031	Villers-Saint-Ghislain
7032	Spiennes
7033	Cuesmes
7034

Postcode

Places

Mons

Jemappes, Flénu

Harmignies, Harveng, Hyon, Mesvin, Nouvelles

7024