8 States with the Most Fluoridated Water in the US

7. South Dakota

Population served by CWS that have fluoridated water (%): 93.80%

A landlocked state in the North-center of the US, South Dakota is famous for its good health services. Ranked 7th, South Dakota has the seventh-highest quantity of fluoridated water in the US. Out of the 757,461 people in the state who receive water from the community water systems, 710,136 get fluoridated water