This 231-acre wildlife area is located off State Route 19, approximately five miles north of Oak Harbor. Access to the marsh units is from Township Road 92, one-half mile west of State Route 19.
The Toussaint Wildlife Area is situated in the flat glacial lake plain region of northwest Ohio. Approximately three-quarters of the area consists of managed wetlands and open water. The marshes are shallow, varying from one to three feet in depth, with deeper channels created by the construction of dikes.
The Toussaint River runs through and divides the wildlife area. The marsh area lies on the west side of the Toussaint River; angler access is on the east side of the river.