Freiensteinau lies on the southern slopes of the Vogelsberg Mountains.

The community consists of the twelve centres of Freiensteinau (administrative seat), Holzmühl, Fleschenbach, Salz, Ober-Moos, Nieder-Moos, Gunzenau, Reichlos, Weidenau, Reinhards, Hessisch Radmühl and Preußisch Radmühl.

Former mayors: The organ at the Evangelical Church in Nieder-Moos was built in 1790-1791 by Johann-Markus Oestreich from Oberbimbach near Fulda.

Every year, the Nieder-Mooser Sommerkonzerte (Nieder-Moos Summer Concerts) take place around the organ.

A curious fact about the community's political history is that before Hesse's municipal reforms in the 1970s, the 12 constituent communities nowadays within Freiensteinau not only were not united, but even belonged to four different districts: Fulda, Gelnhausen, Lauterbach and Schlüchtern.