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2006 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, 2006, and the U.S. Census Bureau estimates as reported in Bailey W, Duchon K, Barker L, Maas W. Populations receiving optimally fluoridated public drinking water – United States, 1992–2006. MMWR 2008; 57(27):737–741.
 

National Water Fluoridation Statistics

Total U.S. population, personsa299,398,484
U.S. population on public water systems, personsb262,690,043
Total U.S. population on fluoridated drinking water systems, personsb184,028,038
Percentage of U.S. population receiving fluoridated waterc61.5%
Percentage of U.S. population on public water systems receiving
fluoridated waterd
69.2%
Total number of community water systems (CWS) in United Statesb53,429
Number of CWS providing fluoridated waterb16,412
Number of CWS adjusting fluorideb6,368
Number of CWS consecutive to systems with optimal fluoride levelsb6,705
Number of CWS with naturally occurring fluoride at or above optimal levelsb3,339
Population served by CWS with naturally occurring fluorideb8,078,890

State Fluoridation Percentage Calculations and States Ranked by Fluoridation Percentage

State%Persons receiving fluoridated waterPersons served
by CWS
StateRank
United States69.2184,028,038265,794,252Kentucky1
Alabamae82.93,814,2954,599,030Illinois2
Alaska59.5308,801519,379Minnesota3
Arizona56.13,147,2455,611,581North Dakota4
Arkansas64.41,648,3172,561,312Georgia5
Californiae,f27.19,881,39036,457,549Indiana6
Colorado73.63,085,3194,190,698South DakotaTied for
7
Connecticut88.92,393,4872,691,412VirginiaTied for
7
Delaware73.6603,207819,176South Carolina9
District of Columbiae100.0581,530581,530Maryland10
Florida77.713,006,12816,729,803Tennessee11
Georgiae95.88,974,3029,393,941Iowa12
Hawaiie,f8.4107,6841,285,498West Virginia13
Idaho31.3316,3501,011,949Michigan14
Illinois98.911,355,74711,484,994Wisconsin15
Indiana95.14,327,9164,550,057Ohio16
Iowa92.42,363,2772,558,575Connecticut17
Kansas65.11,669,6572,563,505North Carolina18
Kentuckye99.84,199,5194,206,074Rhode Island19
Louisianae40.41,731,8074,287,768Alabama20
Maine79.6501,290630,136Missouri21
Maryland93.84,549,0554,847,653Maine22
Massachusettse59.13,802,7326,437,193Texas23
Michigan90.96,664,7067,335,365Florida24
Minnesota98.73,905,7543,956,659New Mexico25
Mississippie50.91,480,6012,910,540ColoradoTied for
26
Missouri79.73,928,1004,928,689DelawareTied for
26
Montana31.3248,850794,563Oklahoma28
Nebraska69.8991,2921,420,624New York29
Nevada72.01,744,9842,422,152Nevada30
New Hampshire42.6354,637832,656Nebraska31
New Jersey22.61,771,3247,839,608Kansas32
New Mexico77.01,207,0341,567,857Arkansas33
New York72.912,733,58217,471,590Washington34
North Carolina87.65,689,9066,498,294Alaska35
North Dakota96.2552,785574,346Massachusetts36
Ohio89.38,948,97510,021,630Vermont37
Oklahoma73.52,493,5213,392,725Arizona38
Oregon27.4839,7273,069,204Utah39
Pennsylvania54.05,610,87310,390,234Pennsylvania40
Rhode Island84.6826,863977,261Mississippi41
South Carolina94.63,355,8733,545,617New Hampshire42
South Dakota95.0657,022691,333Louisiana43
Tennessee93.74,889,9875,220,410Wyoming44
Texas78.116,979,97521,731,824IdahoTied for
45
Utah54.31,216,9802,242,897MontanaTied for
45
Vermont58.7310,953529,441Oregon47
Virginia95.05,830,3286,135,847California48
Washington62.93,542,9485,628,782New Jersey49
West Virginia91.71,247,3011,360,193Hawaii50
Wisconsin89.73,471,7063,868,775
 

 
Wyoming36.4162,396446,323
 

 


Footnotes

a. Annual Population Estimates and Estimated Components of Population Change for the United States and States: April 1, 2000 to July 1, 2006. Source: Population Estimates Program, U.S. Bureau of the Census. Internet Release date: December 22, 2006. Population, population change and estimated components of population change: April 1, 2000 to July 1, 2006 available at http://www.census.gov/popest/datasets.html.

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

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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