Pettis County is named for Spencer Darwin Pettis, who was a United States Congressman.
Surrounding County Courthouses:
N – Saline County
E – Cooper County and Morgan County
S – Benton County
W – Henry County and Johnson County
Created: November 25, 1820 
County Seat:
Sedalia 1840 – present
County Courthouse – Sedalia
Location: 415 South Ohio Avenue / East 4th Street
Built: 1923 – 1925
Style: Classical Revival
Architect: William E Hulse of Hutchinson, Kansas
Contractor: Western Construction Company of Des Moines, Iowa
Description: The building faces west and is a three story grey colored limestone and concrete structure. The building is 96 feet by 55 feet. The west front has eight columns rising from the second story to the top of the third story. The first story has horizontal stone and three entrances with small pediments and flanked by two arches on either side. A balustrade runs along the roof line with clock in the center.
See: The 18th Judicial District covers Cooper County and Pettis County.
County Courthouse - Sedalia
Photos taken 2009