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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, personsb |
276,607,387 |
Total U.S. population on fluoridated CWS, 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 served
by 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 |
Californiaf |
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 |
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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
Page last reviewed: July 27, 2012
Page last modified: July 27, 2012
Content source:
Division of Oral Health, National Center for Chronic Disease Prevention and
Health Promotion |
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