Warren County is named for Joseph Warren, who was a doctor and a soldier who ied in the Battle of Bunker Hill.
Surrounding County Courthouses:
N – Montgomery County and Lincoln County
S – Franklin County
Created: January 5, 1833 
County Seat:
Warrenton 1836 – present
County Courthouse – Warrenton
Location: 104 West Booneslick Road / South Market Street
Built: 1997 – 1998
Style: Modern
Architect: Phillips Swager Associates of Peoria, Illinois
Contractor: Denien Construction of Wentzville
Description: The building faces north and is a three story red colored brick, stone and concrete structure. The building is located on landscaped grounds in the center of Warrenton. The north front has a recessed center section with the entrance on the first story and peaked roof line. White colored columns form a semicircular overhang. There is stone trim at the corners and horizontal bands across the building. The base of the building is course stone. The roof line is flat. The building houses the County Circuit Court of the 12th Judicial Circuit.
See: The 12th Judicial District covers Audrain County, Montgomery County and Warren County.
History: The county was created in 1833 and Warrenton was selected as the county seat in 1836. The first courthouse was built by Solomon Jenkins in 1838 at a cost of $2,600. The second courthouse was designed by Thomas W Brady of St. Louis and was constructed by Julius Conrad and Company at a cost of $40,000 in 1869. The building was torn down and the cupola preserved. The third and present courthouse was constructed in 1997 and 1998.
County Courthouse – Warrenton
Old County Courthouse Cupola 1869
Photos taken 2009