 Along its border with the state of Brandenburg, Buch is surrounded by the municipalities of Wandlitz and Panketal (with the civil parishes of Zepernick, Röntgental and Neu Buch), both in the district of Barnim.The Berlin localities bordering with Buch in the south are Blankenfelde, Französisch Buchholz and Karow.In Karow, a neighbourhood exists which is named "Stadtrandsiedlung Buch".