 Slenaken is located in the municipality of Gulpen-Wittem in Limburg, and is one of the southernmost villages of the Netherlands, close to the frontier with Belgian Limburg, and along the valley of the Gulp river.To the north of the village is the , with the village of Epen, beyond that, to the northeast.The village of Noorbeek lies to the west of Slenaken, and across the border to the south are the little settlements of and .