The core cities in Flanders are:
Aalst, Antwerp, Boom, Bruges, Dendermonde, Genk, Ghent, Hasselt, Kortrijk, Leuven, Mechelen, Ostend, Roeselare, Sint-Niklaas, Turnhout and Vilvoorde

The municipalities in the Flemish periphery are
– all municipalities of the Halle-Vilvoorde district: Affligem, Asse, Beersel, Beaver, Dilbeek, Drogenbos, Galmaarden, Gooik, Grimbergen, Halle, Herne, Hoeilaart, Kampenhout, Kapelle-op-den-Bos, Kraainem, Lennik, Liedekerke, Linkebeek, Londerzeel, Machelen, Meise, Merchtem, Opwijk, Overijse, Pepingen, Roosdaal, Sint-Genesius-Rode, Sint-Pieters-Leeuw, Steenokkerzeel, Ternat, Vilvoorde, Wemmel, Wezembeek-Oppem, Zaventem, Zemst;
– all municipalities of the district of Leuven: Bertem, Huldenberg, Kortenberg and Tervuren

The list is exhaustive. Houses located in a sub-municipality of one of the core cities or one of the municipalities in the Flemish periphery are included.