 Sontra borders in the north on the town of Waldkappel and the community of Wehretal, in the east on the communities of Ringgau and Herleshausen (all in the Werra-Meißner-Kreis), in the southeast on the community of Gerstungen (in Thuringia’s Wartburgkreis), in the south on the communities of Wildeck and Nentershausen and in the southwest on the community of Cornberg (all three in Hersfeld-Rotenburg).Sontra’s 15 "Ortsteile", besides the main town, also called Sontra, are Berneburg, Blankenbach, Breitau, Diemerode, Heyerode, Hornel, Krauthausen, Lindenau, Mitterode, Stadthosbach, [Thurnhosbach] , Ulfen, Weißenborn, Wichmannshausen and Wölfterode.In 775, Sontra’s outlying centre of Ulfen had its first documentary mention.