Sint-Genesius-Rode is a municipality in the province of Flemish Brabant, in the Flemish region of Belgium. The municipality only comprises the town of Sint-Genesius-Rode proper, and lies between Brussels and Waterloo in Wallonia. On January 1, 2008, Sint-Genesius-Rode had a total population of 18,021. The total area is 22.77 km2 (8.79 sq mi), which gives a population density of 791/km2 (2,050/sq mi). It borders the Brussels-Capital Region and is essentially a suburb of the city, contiguous with the Prince d'Orange neighbourhood (Uccle), and was a component of the short-lived Arrondissement of Brussels-Periphery. While the Brussels-Capital Region does not have a direct border with Wallonia, the shortest distance between the two is at Sint-Genesius-Rode municipality, with around 4 kilometres (2.5 mi) separating Prince d'Orange and Waterloo along the N5 road.