Marengo is an unincorporated census-designated place located in the town of White River, Ashland County, Wisconsin, United States.

Marengo is located on Wisconsin Highway 13 10 miles (16 km) northwest of Mellen.

Marengo had a post office, which closed on June 27, 2009.

[5] Bus service to the community is provided by Bay Area Rural Transit.

This article about a location in Ashland County, Wisconsin is a stub.