St. Mary's Square Shopping Center is a shopping destination located in St. Mary's, OH. As a Community Center, it occupies a prime spot at U.S 33 & OH 29. Since opening in 1990, St. Mary's Square Shopping Center has been refreshed with a renovation completed in 1992. Shoppers can explore 250,000 sqft. of retail floor space featuring approximately 24 stores. Ample parking is provided with 1,376 spaces available.