Green Lake County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 19,018. Its county seat is Green Lake. In 2020, the center of population of Wisconsin was located in Green Lake County, near the city of Markesan.

Dodge County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 89,396. Its county seat is Juneau. The county was created from the Wisconsin Territory in 1836 and organized in 1844.