
Marengo
- County:
- Ashland County
- County Seat:
- No
- Area (mi²):
- 1.046
- State:
- Wisconsin
Marengo is a CDP located in Ashland County, Wisconsin. Marengo has a 2025 population of 155. Marengo is currently growing at a rate of 1.97% annually and its population has increased by 13.14% since the most recent census, which recorded a population of 137 in 2020.
The average household income in Marengo is $65,764 with a poverty rate of 8.57%. The median age in Marengo is 27.7 years: 37.2 years for males, and 27.3 years for females.