The municipality is located on the eastern slope of the Masenberg and extends from Eggendorf to the Hartberger Safen. This is associated with a west-east extension of about 8 km and a relative difference in altitude of 750 meters. The cadastral communities are Penzendorf, Staudach and Wolfgrub.
Extensive forest areas, only slightly dissected by the small streams, together with the colorful fields and the scattered farmsteads and houses form a charming landscape.
A special highlight is the bathing lake in the Greini-Freizeit-Welt Greinbach.
Tip: The view from the Ringwarte on the Ringkogel above the historic town of Hartberg provides a beautiful overview of the entire community of Greinbach.