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2010 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, 2010, and the U.S. Census Bureau estimates from 2010.

National Water Fluoridation Statistics

Total U.S. population, personsa  308,745,538
U.S. population on community water systems (CWS), personsb 276,607,387
Total U.S. population on fluoridated drinking water systems, personsb 204,283,554
Percentage of U.S. population receiving fluoridated waterc 66.2%
Percentage of U.S. population on CWS receiving fluoridated waterd 73.9%
Total number of CWS in United Statesb 54,293
Number of CWS providing fluoridated waterb 18,427
Number of CWS adjusting fluorideb 6,042
Number of CWS consecutive to systems with optimal fluoride levelsb 6,795
Number of CWS with naturally occurring fluoride at or above optimal levelsb 5,590
Population served by CWS with naturally occurring fluorideb 10,077,922

State Fluoridation Percentage Calculations and States Ranked by Fluoridation Percentage

State % Persons receiving fluoridated water Persons servedby CWS   State Rank
United States 73.9 204,283,554 276,607,387   Kentucky 1
Alabamae 80.0 3,821,766 4,779,736   Maryland 2
Alaska 62.8 404,039 643,373   Illinois 3
Arizona 56.7 3,114,799 5,493,584   Minnesota 4
Arkansas 64.7 1,724,131 2,666,306   North Dakota 5
California,f 62.1 22,812,721 36,756,666   Virginia 6
Coloradoe 70.1 3,523,554 5,029,196   South Dakota 7
Connecticut 91.0 2,370,423 2,604,427   Indiana 8
Delaware 86.2 705,344 818,110   West Virginia 9
District of Columbia 100.0 595,000 595,000   Iowa 10
Florida 78.0 13,377,651 17,156,553   Georgia 11
Georgiae 92.1 8,924,598 9,687,653   Michigan Tied for
12
Hawaiif 10.8 139,598 1,290,549   Tennessee Tied for
12
Idaho 30.5 335,127 1,099,561   Connecticut 14
Illinois 99.3 11,325,132 11,403,176   Wisconsin 15
Indiana 94.4 4,326,732 4,582,296   Ohio 16
Iowa 92.3 2,344,818 2,541,455   North Carolina 17
Kansas 65.1 1,155,071 1,775,588   South Carolina 18
Kentuckye 99.9 4,334,223 4,339,367   Delaware 19
Louisianae 40.7 1,846,149 4,533,372   Rhode Island 20
Maine 79.0 521,414 660,367   Texas 21
Maryland 99.8 5,140,618 5,151,947   Alabama 22
Massachusettse 70.7 4,626,859 6,547,629   Missouri 23
Michigan 91.6 7,322,410 7,996,744   Maine 24
Minnesota 98.8 4,117,266 4,166,424   Florida 25
Mississippie 55.2 1,639,348 2,967,297   New Mexico 26
Missouri 79.8 3,966,102 4,966,951   New York 27
Montana 29.6 233,221 788,705   Nevada 28
Nebraska 70.2 1,001,665 1,425,929   Massachusetts 29
Nevada 72.9 1,855,460 2,544,079   Nebraska 30
New Hampshire 42.9 357,262 832,631   Colorado 31
New Jersey 13.5 1,111,624 8,221,293   Kansas 32
New Mexico 77.0 1,210,777 1,571,600   Arkansas Tied for
33
New Yorke 74.7 14,468,141 19,378,102   Oklahoma Tied for
33
North Carolina 87.3 6,174,598 7,072,012   Washington 35
North Dakota 96.9 559,246 577,325   Alaska 36
Ohio 87.7 8,772,683 10,005,412   California 37
Oklahoma 64.7 2,296,459 3,547,668   Arizona 38
Oregon 22.6 833,227 3,688,540   Vermont 39
Pennsylvania 54.6 5,802,260 10,636,421   Mississippi 40
Rhode Island 85.3 853,580 1,000,413   Pennsylvania 41
South Carolina 87.1 3,434,565 3,944,594   New Hampshire 42
South Dakota 94.8 642,942 678,028   Louisiana 43
Tennessee 91.6 5,336,600 5,827,549   Wyoming 44
Texas 80.4 19,362,219 24,080,084   Utah 45
Utahe 33.2 918,473 2,763,885   Idaho 46
Vermont 56.6 256,006 452,116   Montana 47
Virginia 95.6 6,124,274 6,403,141   Oregon 48
Washington 64.6 3,490,031 5,402,328   New Jersey 49
West Virginia 92.4 1,208,015 1,307,369   Hawaii 50
Wisconsin 87.9 3,300,037 3,755,613  

Wyoming 36.8 165,296 449,223  


Footnotes

a. Census Population Count 2010. Intercensal Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2000 to July 1, 2010. Source: Population Estimates Program, U.S. Census Bureau. Internet release date: December 21, 2011. Available at http://www.census.gov/popest/data/intercensal/state/state2010.html.

b. Reported in CDC Water Fluoridation Reporting System (WFRS). For purposes of this report, a water system is considered a community water system if so designated by the state drinking water administrator in accordance with the regulatory requirements of the U.S. Environmental Protection Agency. In general, public water systems provide water for human consumption through pipes or other constructed conveyances to at least 15 service connections, or serves an average of at least 25 people for at least 60 days a year. A community water system is a public water system that supplies water to the same population year-round. Available at http://water.epa.gov/infrastructure/drinkingwater/pws/factoids.cfm.

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.

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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