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Community Water Fluoridation Status by State

Community water fluoridation began in the 1940s. Since then the number of community water systems and the number of people served by fluoridated systems have been steadily increasing. Currently about two-thirds of the U.S. population receives fluoride through their community water system. This has been an important factor in the steady decrease in tooth decay rates.

Table 1: Percent of Population Receiving Fluoridated Water

Ranked by State

Location Percent State Rank
United States 65.8   
DC 100.0   
Kentucky 99.6 1
Illinois 99.1 2
Minnesota 98.4 3
Tennessee 96.0 4
North Dakota 95.6 5
Indiana 95.5 6
Virginia 93.8 7
Maryland 93.7 8
Georgia 93.0 9
West Virginia 91.5 10
South Carolina 91.4 11
Iowa 91.3 11
Ohio 90.6 13
Wisconsin 89.4 14
Rhode Island 89.2 15
Connecticut 87.6 16
Michigan 86.2 17
North Carolina 84.6 18
Alabama 82.0 19
Delaware 80.9 20
Missouri 80.9  21
South Dakota 78.0 22
New Mexico 76.6 23
Colorado 75.4 24
Oklahoma 74.6 25
Maine 74.4 26
New York 72.9 27
Nebraska 69.5 28
Nevada 69.4 29
Florida 67.4 30
Texas 65.7 31
Arkansas 62.1 32
Kansas 62.1 33
Massachusetts 60.7 34
Washington 58.9 35
Alaska 57.3 36
Vermont 55.7 37
Arizona 55.4 38
Pennsylvania 54.0 38
Idaho 47.5 40
Mississippi 46.1 41
Louisiana 45.9 42
New Hampshire 42.7 43
Wyoming 36.7 44
California 27.6 45
Montana 23.8 46
New Jersey 20.8 47
Oregon 19.4 48
Hawaii 8.6 49
Utah 2.2 50

Alphabetical by State

Location Percent State Rank
United States 65.8   
Alabama 82.0 19
Alaska 57.3 36
Arizona 55.4 38
Arkansas 62.1 32
California 27.6 45
Colorado 75.4 24
Connecticut 87.6 16
DC 100.0   
Delaware 80.9  20
Florida 67.4 30
Georgia 93.0 9
Hawaii 8.6 49
Idaho 47.5 40
Illinois 99.1 2
Indiana 95.5 6
Iowa 91.3  11
Kansas 62.1 33
Kentucky 99.6 1
Louisiana 45.9 42
Maine 74.4 26
Maryland 93.7 8
Massachusetts 60.7 34
Michigan 86.2 17
Minnesota 98.4 3
Mississippi 46.1 41
Missouri 80.9 21
Montana 23.8 46
Nebraska 69.5 28
Nevada 69.4 29
New Hampshire 42.7 43
New Jersey 20.8 47
New Mexico 76.6 23
New York 72.9 27
North Carolina 84.6 18
North Dakota 95.6 5
Ohio 90.6 13
Oklahoma 74.6 25
Oregon 19.4 48
Pennsylvania 54.0 38
Rhode Island 89.2 15
South Carolina 91.4 11
South Dakota 78.0 22
Tennessee 96.0 4
Texas 65.7  31
Utah 2.2 50
Vermont 55.7 37
Virginia 93.8 7
Washington 58.9 35
West Virginia 91.5 10
Wisconsin 89.4 14
Wyoming 36.7 44

Source: Centers for Disease Control and Prevention 2002 Water Fluoridation Reporting System (WFRS)

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This page last updated: March 14, 2014