Bree is a city and municipality in the Flemish province of Limburg, Belgium. In December 2021, Bree had a total population of 16,097. T…Bree is a city and municipality in the Flemish province of Limburg, Belgium. In December 2021, Bree had a total population of 16,097. The total area is 64.96 km² which gives it a population density of 246 inhabitants per square kilometre. The mayor of Bree is Liesbeth van der Auwera.