Clay County: Liberty, MO Clay County Courthouse, 816-792-7733 Clay County Parks Department, 816-532-0803 Clay County Highway Department, 816-792-7606 Clay County, MO Government Information and more... Clay County Economic Development Council SmartCities Economic Area Info Link Ray County: Richmond, MO Ray County Courthouse, 816-776-4508 Ray County Assessor's Office, 816-776-2676 Ray County Collector, 816-776-2187 Ray County Planning & Zoning, 816-776-5398 Ray County Sheriff's Department, 816-776-2000 or 470-5831 Clinton County Seat: Plattsburg, MO www.plattsburg-mo.gov State Capital: Jefferson City / Governor: Matt Blunt All Missouri government resources can be found at www.mo.gov Federal Since there are too many federal agencies, services, and sites to list, we recommend starting at FirstGov.gov, the U.S. Government's official web portal. HOME |