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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, personsa |
299,398,484 |
| U.S. population on Public Water Systems, personsb |
262,690,043 |
| Total U.S. population on fluoridated drinking water
systems, personsb |
184,028,038 |
| Percentage of U.S. population receiving fluoridated waterc |
61.5% |
Percentage of U.S. population on public water
systems receiving
fluoridated waterd |
69.2% |
| Total number of Community Water Systems (CWS) in
United Statesb |
53,429 |
| Number of CWS providing fluoridated waterb |
16,412 |
| Number of CWS adjusting fluorideb |
6,368 |
| Number of CWS consecutive to systems with optimal
fluoride levelsb |
6,705 |
| Number of CWS with naturally occurring fluoride at
or above optimal levelsb |
3,339 |
| Population served by CWS with naturally occurring
fluorideb |
8,078,890 |
State Fluoridation Percentage Calculations and States Ranked by
Fluoridation Percentage
| State |
% |
Persons receiving fluoridated water |
Persons served
by CWS |
|
State |
Rank |
| United States |
69.2 |
184,028,038 |
265,794,252 |
|
Kentucky |
1 |
| Alabamae |
82.9 |
3,814,295 |
4,599,030 |
|
Illinois |
2 |
| Alaska |
59.5 |
308,801 |
519,379 |
|
Minnesota |
3 |
| Arizona |
56.1 |
3,147,245 |
5,611,581 |
|
North Dakota |
4 |
| Arkansas |
64.4 |
1,648,317 |
2,561,312 |
|
Georgia |
5 |
| Californiae,f |
27.1 |
9,881,390 |
36,457,549 |
|
Indiana |
6 |
| Colorado |
73.6 |
3,085,319 |
4,190,698 |
|
South Dakota |
Tied for
7 |
| Connecticut |
88.9 |
2,393,487 |
2,691,412 |
|
Virginia |
Tied for
7 |
| Delaware |
73.6 |
603,207 |
819,176 |
|
South Carolina |
9 |
| District of Columbiae |
100.0 |
581,530 |
581,530 |
|
Maryland |
10 |
| Florida |
77.7 |
13,006,128 |
16,729,803 |
|
Tennessee |
11 |
| Georgiae |
95.8 |
8,974,302 |
9,393,941 |
|
Iowa |
12 |
| Hawaiie,f |
8.4 |
107,684 |
1,285,498 |
|
West Virginia |
13 |
| Idaho |
31.3 |
316,350 |
1,011,949 |
|
Michigan |
14 |
| Illinois |
98.9 |
11,355,747 |
11,484,994 |
|
Wisconsin |
15 |
| Indiana |
95.1 |
4,327,916 |
4,550,057 |
|
Ohio |
16 |
| Iowa |
92.4 |
2,363,277 |
2,558,575 |
|
Connecticut |
17 |
| Kansas |
65.1 |
1,669,657 |
2,563,505 |
|
North Carolina |
18 |
| Kentuckye |
99.8 |
4,199,519 |
4,206,074 |
|
Rhode Island |
19 |
| Louisianae |
40.4 |
1,731,807 |
4,287,768 |
|
Alabama |
20 |
| Maine |
79.6 |
501,290 |
630,136 |
|
Missouri |
21 |
| Maryland |
93.8 |
4,549,055 |
4,847,653 |
|
Maine |
22 |
| Massachusettse |
59.1 |
3,802,732 |
6,437,193 |
|
Texas |
23 |
| Michigan |
90.9 |
6,664,706 |
7,335,365 |
|
Florida |
24 |
| Minnesota |
98.7 |
3,905,754 |
3,956,659 |
|
New Mexico |
25 |
| Mississippie |
50.9 |
1,480,601 |
2,910,540 |
|
Colorado |
Tied for
26 |
| Missouri |
79.7 |
3,928,100 |
4,928,689 |
|
Delaware |
Tied for
26 |
| Montana |
31.3 |
248,850 |
794,563 |
|
Oklahoma |
28 |
| Nebraska |
69.8 |
991,292 |
1,420,624 |
|
New York |
29 |
| Nevada |
72.0 |
1,744,984 |
2,422,152 |
|
Nevada |
30 |
| New Hampshire |
42.6 |
354,637 |
832,656 |
|
Nebraska |
31 |
| New Jersey |
22.6 |
1,771,324 |
7,839,608 |
|
Kansas |
32 |
| New Mexico |
77.0 |
1,207,034 |
1,567,857 |
|
Arkansas |
33 |
| New York |
72.9 |
12,733,582 |
17,471,590 |
|
Washington |
34 |
| North Carolina |
87.6 |
5,689,906 |
6,498,294 |
|
Alaska |
35 |
| North Dakota |
96.2 |
552,785 |
574,346 |
|
Massachusetts |
36 |
| Ohio |
89.3 |
8,948,975 |
10,021,630 |
|
Vermont |
37 |
| Oklahoma |
73.5 |
2,493,521 |
3,392,725 |
|
Arizona |
38 |
| Oregon |
27.4 |
839,727 |
3,069,204 |
|
Utah |
39 |
| Pennsylvania |
54.0 |
5,610,873 |
10,390,234 |
|
Pennsylvania |
40 |
| Rhode Island |
84.6 |
826,863 |
977,261 |
|
Mississippi |
41 |
| South Carolina |
94.6 |
3,355,873 |
3,545,617 |
|
New Hampshire |
42 |
| South Dakota |
95.0 |
657,022 |
691,333 |
|
Louisiana |
43 |
| Tennessee |
93.7 |
4,889,987 |
5,220,410 |
|
Wyoming |
44 |
| Texas |
78.1 |
16,979,975 |
21,731,824 |
|
Idaho |
Tied for
45 |
| Utah |
54.3 |
1,216,980 |
2,242,897 |
|
Montana |
Tied for
45 |
| Vermont |
58.7 |
310,953 |
529,441 |
|
Oregon |
47 |
| Virginia |
95.0 |
5,830,328 |
6,135,847 |
|
California |
48 |
| Washington |
62.9 |
3,542,948 |
5,628,782 |
|
New Jersey |
49 |
| West Virginia |
91.7 |
1,247,301 |
1,360,193 |
|
Hawaii |
50 |
| Wisconsin |
89.7 |
3,471,706 |
3,868,775 |
|
|
|
| Wyoming |
36.4 |
162,396 |
446,323 |
|
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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
Page last reviewed: August 10, 2010
Page last modified: August 10, 2010
Content source:
Division of Oral Health,
National Center for Chronic Disease Prevention and
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