Gembloux is a city and municipality of Wallonia located in the province of Namur, Belgium. On 1 January 2006, the municipality had 21,964 inh…Gembloux is a city and municipality of Wallonia located in the province of Namur, Belgium. On 1 January 2006, the municipality had 21,964 inhabitants. The total area is 95.86 km², yielding a population density of 229 inhabitants per km². The mayor, who was elected on 8 October 2006, is Benoît Dispa.