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2008 Water Fluoridation Statistics

These statistics were prepared using water system data reported by states to the CDC Water Fluoridation Reporting System as of December 31, 2008, and the U.S. Census Bureau estimates from 2008.

National Water Fluoridation Statistics

Total U.S. population, personsa  304,059,724
U.S. population on public water systems, personsb 269,911,707
Total U.S. population on fluoridated drinking water systems, personsb 195,545,109
Percentage of U.S. population receiving fluoridated waterc 64.3%
Percentage of U.S. population on public water systems receiving
fluoridated waterd
72.4%
Total number of community water systems (CWS) in United Statesb 55,396
Number of CWS providing fluoridated waterb 16,977
Number of CWS adjusting fluorideb 6,143
Number of CWS consecutive to systems with optimal fluoride levelsb 6,176
Number of CWS with naturally occurring fluoride at or above optimal levelsb 4,658
Population served by CWS with naturally occurring fluorideb 8,805,304

State Fluoridation Percentage Calculations and States Ranked by Fluoridation Percentage

State % Persons receiving fluoridated water Persons servedby CWS   State Rank
United States 72.4 195,545,109 269,911,707   Maryland 1
Alabamae 82.2 3,834,244 4,661,900   Kentucky 2
Alaska 62.8 404,213 643,171   Minnesota 3
Arizona 52.3 2,891,937 5,540,666   North Dakota 4
Arkansas 60.5 1,548,556 2,560,592   Georgia 5
Californiae,f 58.8 21,545,671 36,756,666   Illinois 6
Coloradoe 70.6 3,456,845 4,894,967   Virginia 7
Connecticut 89.9 2,381,617 2,650,064   Indiana 8
Delawaree 76.8 629,375 819,176   South Carolina 9
District of Columbiae 100.0 591,833 591,833   Iowa 10
Florida 78.3 13,358,020 17,054,168   South Dakota 11
Georgiae 95.8 9,275,167 9,685,744   Tennessee 12
Hawaiie,f 10.8 139,344 1,288,198   West Virginia 13
Idaho 31.2 316,176 1,011,975   Connecticut 14
Illinois 95.4 10,962,689 11,488,921   Michigan 15
Indianae 94.5 4,329,107 4,679,082   Wisconsin 16
Iowa 91.8 2,329,107 2,559,374   North Carolina 17
Kansas 44.7 1,152,217 2,575,758   Rhode Island 18
Kentuckye 99.4 3,913,321 3,937,857   Ohio 19
Louisianae 28.3 1,251,996 4,410,796   Alabama 20
Mainee 79.7 504,915 633,761   Missouri 21
Maryland 99.8 4,839,490 4,847,653   Maine 22
Massachusettse 65.4 4,248,364 6,497,967   Florida 23
Michigan 89.8 6,634,800 7,387,236   Texas 24
Minnesota 98.8 4,097,816 4,149,298   New Mexico 25
Mississippie 54.6 1,603,339 2,938,618   Delaware 26
Missourie 79.8 3,965,831 4,971,878   Oklahoma 27
Montana 30.0 239,365 796,592   New York 28
Nebraskae 69.9 992,733 1,420,624   Nevada 29
Nevadae 72.0 1,757,184 2,421,488   Colorado 30
New Hampshire 42.6 354,637 832,656   Nebraska 31
New Jersey 13.6 1,120,552 8,221,172   Massachusetts 32
New Mexico 77.0 1,210,777 1,571,600   Alaska 33
New York 72.2 12,635,191 17,501,433   Washington 34
North Carolina 85.6 5,562,402 6,498,294   Arkansas 35
North Dakota 96.4 557,291 577,894   California 36
Ohioe 84.1 8,579,976 10,197,583   Vermont 37
Oklahomae 75.3 2,741,327 3,642,361   Mississippi 38
Oregon 27.4 838,902 3,068,579   Utah Tied for
39
Pennsylvania 54.3 5,805,181 10,699,115   Pennsylvania Tied for
39
Rhode Islande 84.6 826,863 977,261   Arizona 41
South Carolina 94.4 3,401,207 3,722,944   Kansas 42
South Dakotae 93.3 640,871 686,502   New Hampshire 43
Tennessee 91.4 5,268,629 5,762,029   Wyoming 44
Texas 78.6 16,979,812 21,891,651   Idaho 45
Utah 54.3 1,217,240 2,243,157   Montana 46
Vermonte 58.5 308,051 527,051   Louisiana 47
Virginia 94.9 5,972,601 6,295,305   Oregon 48
Washington 62.4 3,461,572 5,545,595   New Jersey 49
West Virginiae 90.6 1,209,238 1,334,504   Hawaii 50
Wisconsine 89.7 3,471,706 3,868,775  

Wyominge 36.8 165,296 449,223  


Footnotes

a. Annual Population Estimates and Estimated Components of Population Change for the United States and States: April 1, 2000 to July 1, 2008. Source: Population Estimates Program, U.S. Census Bureau. Internet release date: December 22, 2008. Population, population change, and estimated components of population change: April 1, 2000 to July 1, 2008 available at http://www.census.gov/popest/datasets.html.

b. Reported in CDC Water Fluoridation Reporting System (WFRS).

c. Fluoridated population divided by total population.

d. Fluoridated population divided by population served by community water systems.

e. Population served by CWS exceeded the U.S. Census state population estimate; number of persons was reduced by the ratio of the population estimate to the CWS population estimate. Use care in comparing the 2008 estimates for the number of persons receiving fluoridated water and persons served by CWS for these states to estimates from 2002, 2004, and 2006 because a different vintage of U.S. Census population estimates was used. The 2008 vintage was used for the 2008 fluoridation statistics, and the 2006 vintage was used for the 2002, 2004, and 2006 statistics.

f . Complete data were not available from WFRS; state provided additional information.

Additional Resources


More detail on U.S. Census Bureau estimates can be found at Calculating Fluoridation Statistics

Historical fluoridation statistics are available at Reference Statistics

 

 

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