Water Fluoridation Data & Statistics

As part of an overall strategy to use public health interventions to reduce or prevent disease among individuals and communities, the US Department of Health and Human Services has set a national health objective for community water fluoridation.

CDC monitors the progress of the nation and individual states toward meeting the Healthy People 2030 objective on community water fluoridation—that 77.1% of people served by community water systems will receive water that has the optimum level of fluoride recommended for preventing tooth decay.

In 2020, 72.7% of the US population on community water systems, or 209,145,650 people, had access to fluoridated water.


Data Summaries

Fluoridation Statistics State-reported data on fluoridated water systems are linked to Census data to create national fluoridation statistics. View the most recent reports.

Fluoridation Growth   Graph and table displaying the history of US Fluoridation Status from 1940 to 2020.

Calculating Fluoridation Statistics Description of the methodology used by CDC to estimate the number of people served by water systems and the number of people receiving fluoridated water.


Water Fluoridation Reporting System (WFRS)
WFRS is a water fluoridation monitoring data system for state and tribal water fluoridation program managers and oral health program directors or managers. Data from WFRS are summarized in the biennial report of national and state fluoridation statistics.

My Water’s Fluoride (MWF)
MWF allows consumers in states participating in the CDC water fluoridation data systems to learn basic information about their water system.

Other data sources are available in Oral Health Data Tools.