Fluoridation Information & Resources

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The Michigan Oral Health Coalition supports community water fluoridation as a safe, effective, and equitable public health strategy to prevent tooth decay. Community water fluoridation helps protect oral health by maintaining or adjusting fluoride in drinking water to the recommended level for cavity prevention. The U.S. Department of Health and Human Services recommends a fluoride level of 0.7 milligrams per liter in drinking water to prevent tooth decay and promote good oral health.

Michigan has a proud history in community water fluoridation. In 1945, Grand Rapids became the first community in the world to adjust fluoride in its public water supply, helping establish a public health practice that has benefited communities across the country.

MOHC recognizes the growing attention on water fluoridation at both the local and national levels. As public conversations continue, it is important that Michigan residents, decision-makers, and community partners have access to accurate, evidence-based information.

Michigan Fluoridatoionc Data

According to CDC’s My Water’s Fluoride Annual Summary Report for Michigan, in 2025 Michigan had 1,459 community water systems serving 7,367,392 people. The report includes community water systems and does not include non-community public water systems. 

Of these systems:

• 610 systems were fluoridated, serving 6,650,969 people, or 90.27% of the population served by reported community water systems. 
• 849 systems were non-fluoridated, serving 716,423 people, or 9.72% of the population served by reported community water systems. 
• 474 systems were optimally fluoridated, serving 5,224,436 people, or 70.90% of the population served by reported community water systems. 
• 100 systems were partially optimally fluoridated, serving 1,088,400 people, or 14.78% of the population served by reported community water systems. 
• 36 systems were fluoridated but not optimal, serving 338,134 people, or 4.59% of the population served by reported community water systems. 

Together, systems reported as optimally fluoridated or partially optimally fluoridated served approximately 85.68% of the population included in Michigan’s 2025 community water system data.

Source: CDC My Water’s Fluoride, Annual Summary Report, Michigan, 2025.

These figures place Michigan well above the most recently published national comparison, which shows that 72.3% of the U.S. population served by community water systems had access to fluoridated water in 2022. In Michigan’s 2025 report, 90.27% of the population served by reported community water systems was served by fluoridated systems. MOHC remains proud of this achievement and committed to protecting access to optimally fluoridated water.

Explore the evidence-based resources from trusted health and oral health organizations linked below. These materials address common questions, support informed decision-making, and help dispel misinformation about community water fluoridation.

MOHC will continue to engage with stakeholders, monitor media and policy developments, and share relevant resources. We invite partners to contribute additional tools and information that can strengthen our collective advocacy for community water fluoridation.

Together, we can help ensure that Michiganders continue to benefit from this proven public health initiative.