It belongs to the Verbandsgemeinde of Emmelshausen having its administration in the like-named town.
It belongs to the Verbandsgemeinde of Emmelshausen, whose seat is in the like-named town.
In addition, Rhenus Veniro operates the Hunsrück Railway between Emmelshausen and Boppard Hbf or Boppard Süd.
A good kilometre northeast of Emmelshausen, where the bypass road meets the old alignment of the Hunsrückhöhenstraße (“Hunsrück Heights Road”, a scenic road across the Hunsrück built originally as a military road on Hermann Göring’s orders), District Road K108 branches off to the northwest, leading to Halsenbach, Ney and Dieler.
The municipality lies in the eastern Hunsrück nestled within a greenbelt of woodland and meadowland, roughly 3 km southeast of Emmelshausen, right on Schinderhannes-Radweg (cycle path).
Sankt Goar is linked to the Autobahn A 61 (Ludwigshafen-Mönchengladbach) by Landesstraße (State Road) 213, which leads to the Emmelshausen interchange (no. 42) 14 km away.