Fluoride Action Network

U.S. Water Systems with High F Levels

Database of drinking water systems with high levels of naturally occurring fluoride; searchable by state.

Minnesota (1993)

Unless otherwise noted, the following information comes from the Fluoridation Census 1992 published by the Centers for Disease Control and Prevention, Division of Oral Health, in 1993.

• It is not known if the water systems listed below are all still active
• The state Water System ID is the same as EPA’s preceded with the state’s initial. For example, Minnesota would be MN0000000


Water Systems




Natural Level of Fluoride (ppm)

A Milligram per Liter (mg/L) is the same as Part Per Million (ppm)

Not all water fluoride levels are included in the Fluoridation Census 1992

Minnesota Fransten MHP Cottonwood 1170007 42 0.7
Minnesota Hanley Falls Yellow Medicine 1870005 265 0.8
Minnesota Revere Redwood 1640010 158 0.9
Minnesota Roseland Kandiyohi 1340009 60 1.0
Minnesota Shelly Norman 1540007 225 1.0
Minnesota Walnut Grove Redwood 1640014 700 1.0
Minnesota Campbell Wilken 1840003 339 1.1
Minnesota Karlstad Kittson 1350002 936 1.2
Minnesota Milroy Redwood 1640005 252 1.4
Minnesota Johnson  Big Stone  1060006  56 1.5 
Minnesota  Prinsburg  Kandiyohi  1340007  600  1.8 
Minnesota Kent  Wilkin  1840004  131  2.1 
Minnesota  Strandquist  Marshall  1450010  136  3.1 
Minnesota Wanda  Redwood  1640015  100  3.2 


See also, Fluoridated School Drinking Water Systems. Certain elementary schools in Minnesota had their drinking water fluoridated at 5.4 ppm from early 1970s to the 1990s.

Please email Fluoride Action Network if you have information to share on levels of naturally occurring fluoride in U.S. drinking water or other bodies of water.

Percentage of State Population served by Public Water Systems that Receive Fluoridated Water

State 2014 2012 2006 2000 1992
Minnesota 98.8% 98.8% 98.7% 98.2% 93.4%

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