Beersel (Dutch: [ˈbeːrsəl]) is a municipality located in the Belgian province of Flemish Brabant. The municipality comprises the towns of Alsemberg, Beersel proper, Dworp, and Lot. On 1 January 2018 Beersel had a total population of 25,069. The total area is 30.01 km² which gives a population density of 835 inhabitants per km². It is close to Brussels; Beersel is approximately 12 km southwest of the center of the city.