Community Water Fluoridation Status
Optimal fluoride levels recommended by the U.S. Public Health Service and CDC (Centers for Disease Control) for drinking water range from 0.7 parts per million (ppm) for warmer climates to 1.2 ppm for cooler climates to account for the tendency for people to drink more water in warmer climates.
Information on the fluoride status of community water supplies, listed by state, county and city can be accessed on the CDC website at: http://apps.nccd.cdc.gov/MWF/Index.asp
The Iowa Water Fluoride Database can be searched to determine the current status of water fluoridation in Iowa: http://www.idph.state.ia.us/ohds/OralHealth.aspx?prog=OHC&pg=Fluoride
Further information on community water fluoridation can be assessed at: American Dental Association: http://www.ada.org/en/public-programs/advocating-for-the-public/fluoride-and-fluoridation