 Elevations in the community reach from 272 m above sea level at the church up to 381 m at the Ziegelberg.The municipal area comprises 535 ha in the constituent community of Geiselbach and 415 ha in the constituent community of Omersbach.In 1269, Geiselbach had its first documentary mention in a purchase agreement between the Seligenstadt Monastery and the Archbishopric of Mainz, between Abbot Conrad and Archbishop Werner.