Jefferson County is a county located in the U.S. state of Indiana. As of 2020, the population was 33,147. The county seat is Madison. Jefferson County was formed on February 1, 1811, from Dearborn and Clark Counties. It was named for Thomas Jefferson, principal draftsman of the Northwest Ordinance and President of the United States from 1801 t…
Jefferson County is a county located in the U.S. state of Indiana. As of 2020, the population was 33,147. The county seat is Madison. Jefferson County was formed on February 1, 1811, from Dearborn and Clark Counties. It was named for Thomas Jefferson, principal draftsman of the Northwest Ordinance and President of the United States from 1801 through 1809.
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