is a municipality
located in the Belgian
province of Antwerp
. The municipality actually comprises 3 towns, situated on a north-south axis. South of the motorway E313 and the Albertkanaal (canal) is Olen proper, also called Olen-St-Martinus (Saint-Martins parish). Between the Albertkanaal and Olen-station (railroad from Antwerp to Neerpelt and Hasselt) is the town of Boekel, also called Achter-Olen (Behind-Olen) or Onze-Lieve-Vrouw-Olen (parish). North of the railroad is the town of St-Jozef-Olen (parish), also called Olen-Fabrieken (Olen-Factory, actually a refinery along the old canal Herentals-Bocholt, that was at its origin). On January 1 2006
Olen had a total population of 11,314. The total area is 23.17 km²
which gives a population density
of 488 inhabitants per km².