Jihlávka is located about 26 kilometres (16 mi) southwest of Jihlava. It lies on the border between the Křemešník Highlands and Křižanov Highlands. The highest point is the Lísek hill at 760 m (2,490 ft) above sea level. The Jihlava River originates in the municipal territory. The upper course of the stream Hamerský potok flows along the southeastern municipal border. There are several fishponds in the municipality; the largest of them is Bor.