Chilton is a city in and county seat of Calumet County in the U.S. state of Wisconsin. The population was 3,720 as of 2024. The city is partially …Chilton is a city in and county seat of Calumet County in the U.S. state of Wisconsin. The population was 3,720 as of 2024. The city is partially within the Town of Chilton. The first residents of Chilton were African-American former slave Moses Stanton and his Native-American wife, Catherine, who arrived in January 1845. The city formed around his saw mill and a grist mill a few years later.