St. Marys, Ohio
St. Marys is a city in Auglaize County, Ohio, United States. Located in western Ohio, it is 11 miles west of Wapakoneta and 20 miles east of the Ohio/Indiana border. The city is located on a portage between the St. Marys and Auglaize river systems, which was a significant factor in its development before the era of canals. The population was 8,332 at the 2010 census. It is included in the Wapakoneta, Ohio, Micropolitan Statistical Area. It was founded... Show more in 1823 and takes its name from the nearby St. Marys River.