The Natrona County Courthouse at 200 N. Center in Casper, Wyoming. It was built in 1940-1941 and is a well-preserved example of period Art Deco architecture. Today, it houses the Commissioners, Assessor, Attorney, Clerk, Coroner, Treasurer and the Planning & Development department. Other county departments are located in the Hall of Justice linked to the rear of the courthouse and in the Townsend Justice Center a half block up Center Street.