Markesan is a city in Green Lake County, Wisconsin, United States.

[5] As of the census[7] of 2010, there were 1,476 people, 589 households, and 383 families living in the city.

There were 661 housing units at an average density of 282.5 per square mile (109.1/km2).

32.6% of all households were made up of individuals, and 19.6% had someone living alone who was 65 years of age or older.

There were 627 housing units at an average density of 265.9 per square mile (102.6/km2).

32.7% of all households were made up of individuals, and 19.5% had someone living alone who was 65 years of age or older.