Bellevue State Park is a 328-acre (133 ha) Delaware state park in the suburbs of Wilmington in New Castle County, Delaware in the United States. The park is named for Bellevue Hall, the former mansion of William du Pont, Jr. Many of the facilities at the park were built by du Pont. Bellevue State Park overlooks the Delaware River and is open for year-round recreation, daily, from 8 a.m. until sunset. The Mount Pleasant Methodist Episcopal Church and Parsonage is located in Bellevue State Park; it was added to the National Register of Historic Places in 1998.