
Markesan
- County:
- Green Lake County
- County Seat:
- No
- Area (mi²):
- 2.324
- State:
- Wisconsin
Markesan is a city located in Green Lake County, Wisconsin. Markesan has a 2025 population of 1,372. Markesan is currently declining at a rate of -0.07% annually and its population has decreased by -0.51% since the most recent census, which recorded a population of 1,379 in 2020.
The average household income in Markesan is $76,969 with a poverty rate of 21.53%. The median age in Markesan is 50 years: 47.4 years for males, and 52.3 years for females.