ChamberMaster Template Cascade City-County Health Department Health & Human Services Cascade City-County Health Department Visit Website Request Info 115 4th St S Great Falls, MT 59401 (406) 454-6950 About Map About Public Health Department serving Great Falls and Cascade County. Divisions include Prevention Services, Family Health Services & Environmental Health Services. What's Nearby? Distance: 5 10 15 20 25 50 mi.