Tri-County Care Center Vandalia, MO - Assisted Living Community size: Medium (11-25) Get Prices & Availability (800) 341-4753 Office Tri-County Care Center is a nice assisted living community in Vandalia, Missouri. It is within sublime Audrain County which is part of the Show Me State. + Read more Share this listing: Vandalia Senior Services Near Me None Listed Vandalia Senior Living Near Me