- Wabash City
- Chester Twp
- La Fontaine Town
- Lagro Town
- Noble Twp
- Paw Paw Twp
- Roann Town
- Waltz Twp
Photo: Halderman-Van Buskirk Farmhouse, ca. 1865, 5653 North 500 West, Paw Paw Township, Wabash County, IN. Listed on the National Register of Historic Places in 2013. Photographed by User:Nyttend (own work), 2013, [cc0-by-1.0 (creativecommons.org/publicdomain/zero/1.0/deed.en], via Wikimedia Commons, accessed July, 2014.
The Wabash County Courthouse is located at 69 West Hill Street, Wabash, IN 46992; phone: 260-563-0661.
Wabash County and the surrounding area was not opened to settlement until 1826 when the Treaty of Paradise Springs between the Miami and Potowatomi Indians and the U.S. Government was signed. 
- Mary Ellen Gadski and Mary Toshach, architectural historians and Linda Robertson, Wabash Marketplace, Downtown Wabash Historic District, Wabash County Indiana, nomination document, 1985, National Park Service, National Register of Historic Places, Washington, D.C.