Grolsheim is an Ortsgemeinde, which is a type of municipality belonging to a Verbandsgemeinde or collective municipality. It is located within the Mainz-Bingen district in the German state of Rhineland-Palatinate.
The settlement serves as a local administrative unit within its respective region. As an Ortsgemeinde, it functions as part of a larger collective municipal structure typical of the administrative organization in this area of Germany.