Ramillies is a municipality of Wallonia located in the Belgian province of Walloon Brabant. On 1 January 2012, Ramillies had a total populatio…Ramillies is a municipality of Wallonia located in the Belgian province of Walloon Brabant. On 1 January 2012, Ramillies had a total population of 6,211. The total area is 48.68 km² which gives a population density of 128 inhabitants per km².