The municipal area is located south of the main crest of the Rothaargebirge, and borders in the north on the towns of Bad Berleburg and Erndtebrück, in the east on the town of Biedenkopf in Hessen, in the southeast on Breidenbach, in the south on Dietzhölztal and in the west on the town of Netphen.
To the North Haiger borders with the town of Netphen (Siegen-Wittgenstein in North Rhine-Westphalia) and the community of Dietzhölztal, to the east with the community of Eschenburg and the town of Dillenburg, to the south with the community of Breitscheid (all in the Lahn-Dill-Kreis), and to the west with the communities of Burbach and Wilnsdorf (both in the Siegen-Wittgenstein district of North Rhine-Westphalia).