Cole County is located in the central part of the U.S. state of Missouri. As of the 2020 census, its population was 77,279. Its county seat and most populous city is Jefferson City, the state capital.
The Cole County Courthouse in Jefferson City
The Boone County Courthouse of Greek Revival style architecture, built with three stories and basement, with front portico / pediment and columns, at the surrounding Boone County Government Complex, in the county seat town of Columbia, Missouri