The Law and Courts building is located at 60296 M 62, Cassopolis, Michigan.  It houses the following courts and departments:

• 43rd Judicial Circuit/Family Court
• 4th Judicial District Court
• Friend of the Court
• Probate Court
• Prosecuting Attorney

The Cass County Building is located at 120 N. Broadway, Cassopolis, Michigan.  The following offices are in the Cass County Building:

• Administrator/Controller
• Board of Commissioners
• C.A.S.A.
• Clerk Register Office
• Equalization
• Information Systems -
• Michigan Department of Corrections (Adult Probation)
• MSU Extension
• Treasurer
• Veteran Counselor
• Water Resource Commissioner

The Sheriff's Office is located at 321 M-62, Cassopolis, Michigan.  The Sheriff oversees the jail complex, road patrol, E-911 Central Dispatch, Community Corrections and Animal Control. 

• Sheriff's Office

The Cass County Animal Shelter is located at 323 North M-62, Cassopolis, Michigan. The County Animal Control Office shares this building.

• Animal Control