State Government in Saint Marys, OH Grand Lake St Mary's Camp834 Edgewater DrSaint Marys, OH, 458854193942774City OfDmv OfficeGovernment OfficesOhio State Of Grand Lake St Marys Camp GroundsOhio State Of Grand Lake St Marys CampgroundsSt Marys City Board Of EducationVeterans Service Show MoreSee AlsoJustice Courts