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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, personsa308,745,538
U.S. population on community water systems (CWS), personsb276,607,387
Total U.S. population on fluoridated drinking water systems, personsb204,283,554
Percentage of U.S. population receiving fluoridated waterc66.2%
Percentage of U.S. population on CWS receiving fluoridated waterd73.9%
Total number of CWS in United Statesb54,293
Number of CWS providing fluoridated waterb18,427
Number of CWS adjusting fluorideb6,042
Number of CWS consecutive to systems with optimal fluoride levelsb6,795
Number of CWS with naturally occurring fluoride at or above optimal levelsb5,590
Population served by CWS with naturally occurring fluorideb10,077,922

State Fluoridation Percentage Calculations and States Ranked by Fluoridation Percentage

State%Persons receiving fluoridated waterPersons servedby CWSStateRank
United States73.9204,283,554276,607,387Kentucky1
Alabamae80.03,821,7664,779,736Maryland2
Alaska62.8404,039643,373Illinois3
Arizona56.73,114,7995,493,584Minnesota4
Arkansas64.71,724,1312,666,306North Dakota5
California,f62.122,812,72136,756,666Virginia6
Coloradoe70.13,523,5545,029,196South Dakota7
Connecticut91.02,370,4232,604,427Indiana8
Delaware86.2705,344818,110West Virginia9
District of Columbia100.0595,000595,000Iowa10
Florida78.013,377,65117,156,553Georgia11
Georgiae92.18,924,5989,687,653MichiganTied for
12
Hawaiif10.8139,5981,290,549TennesseeTied for
12
Idaho30.5335,1271,099,561Connecticut14
Illinois99.311,325,13211,403,176Wisconsin15
Indiana94.44,326,7324,582,296Ohio16
Iowa92.32,344,8182,541,455North Carolina17
Kansas65.11,155,0711,775,588South Carolina18
Kentuckye99.94,334,2234,339,367Delaware19
Louisianae40.71,846,1494,533,372Rhode Island20
Maine79.0521,414660,367Texas21
Maryland99.85,140,6185,151,947Alabama22
Massachusettse70.74,626,8596,547,629Missouri23
Michigan91.67,322,4107,996,744Maine24
Minnesota98.84,117,2664,166,424Florida25
Mississippie55.21,639,3482,967,297New Mexico26
Missouri79.83,966,1024,966,951New York27
Montana29.6233,221788,705Nevada28
Nebraska70.21,001,6651,425,929Massachusetts29
Nevada72.91,855,4602,544,079Nebraska30
New Hampshire42.9357,262832,631Colorado31
New Jersey13.51,111,6248,221,293Kansas32
New Mexico77.01,210,7771,571,600ArkansasTied for
33
New Yorke74.714,468,14119,378,102OklahomaTied for
33
North Carolina87.36,174,5987,072,012Washington35
North Dakota96.9559,246577,325Alaska36
Ohio87.78,772,68310,005,412California37
Oklahoma64.72,296,4593,547,668Arizona38
Oregon22.6833,2273,688,540Vermont39
Pennsylvania54.65,802,26010,636,421Mississippi40
Rhode Island85.3853,5801,000,413Pennsylvania41
South Carolina87.13,434,5653,944,594New Hampshire42
South Dakota94.8642,942678,028Louisiana43
Tennessee91.65,336,6005,827,549Wyoming44
Texas80.419,362,21924,080,084Utah45
Utahe33.2918,4732,763,885Idaho46
Vermont56.6256,006452,116Montana47
Virginia95.66,124,2746,403,141Oregon48
Washington64.63,490,0315,402,328New Jersey49
West Virginia92.41,208,0151,307,369Hawaii50
Wisconsin87.93,300,0373,755,613
 

 
Wyoming36.8165,296449,223
 

 


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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