State Fluoride Database

Read the latest fluoride news from your state; find out if your town is fluoridated, see if any communities have recently rejected fluoridation, learn if your state has a law that mandates fluoridation, and other fluoride-related information.

South Dakota


    2018:  93.7% – ranked #8 among the states (100% fluoridated is ranked #1)
    2014:  93.6%
  • To see if your town is fluoridated, click here.
  • To learn when your town was fluoridated, and which fluoridation chemical it uses, click here.


For a quick overview, Michael Dolan, in his November 2021 Fluoridation Review, listed these cities and towns in South Dakota:

(Incomplete) This information was obtained from the South Dakota Department of Environment & Natural Resources, Aug. 12, 2020. The list does not indicate the source of the fluoride in the water (natural or added). For this list, each municipality with less than 0.7 mg/L fluoride is listed as non-fluoridated while those having 0.7 mg/L or more are listed as fluoridated. In cases where the fluoride level is greater than 1.0 mg/L the concentration is indicated in parentheses. Other water systems that are not indicated as being from a city or town are not included at this time.

Fluoridated cities and towns: Aberdeen, Alcester (1.45), Aurora, Avon (1.3), Baltic, Beresford, Bison, Bonesteel, Box Elder, Bradley, Buffalo Gap, Burke, Canova, Canton (1.12), Castlewood, Centerville, Chancellor (1.45), Clark, Colman, Colome, Colton, Crooks, Custer, Dallas, DeSmet, Deadwood, Dell Rapids, Edgemont, Egan, Elk Point (2.13), Flandreau, Freeman (1.3), Fruitdale (1.74), Garretson, Gayville, Gregory, Harrisburg, Hartford, Henry, Hill City, Humboldt, Irene (1.3), Jefferson, Keystone, Lead, Lemmon, Lennox, Lesterville (1.3), Madison, Menno (1.3), Milbank, Mission Hill (1.3), Mitchell (1.3), Morristown (1.74), New Underwood (1.51), Newerll (1.25), Nisland, North Sioux City (1.13), Nunda (1.10), Parker, Parkston (1.30), Piedmont (1.25), Rapid City, Raymond, Rosholt (1.30), Scotland (1.30), Sioux Falls, Sisseton (1.42), Spearfish, Tabor (1.30), Tea, Trent, Tripp (1.46), Tyndall (1.30), Utica (1.3), Vermillion (1.18), Volga (1.27), Wakonda, Wall (2.36), Wallace, Wentworth, Wessington Springs, Whitewood (1.10), Winner (1.21), Woonsocket, Worthington (1.45), Yankton.

Non-fluoridated cities and towns: Alpena, Armour, Belle Fourche, Big Stone City, Blunt, Bowdle, Brentford, Bristol, Britton, Bryant, Buffalo, Canistota, Chamberlain, Claremont, Clear Lake, Conde, Corona, Corsica, Cresbard, Delmont, Doland, Dupree, Eagle Butte, Eden, Elkton, Estelline, Eureka, Faith, Faulkton, Florence, Fort Pierre, Frederick, Gray, Geddes, Gettysburg, Grenville, Groton, Hayti, Hecla, Hermosa, Herreid, Highmore, Hitchcock, Hosmer, Hot Springs, Hoven, Howard, Hurley, Ipswich, Iroquois, Isabel, Java, Kadoka, Kennebec, Kimball, Lake Andes, Lake City, Lake Norden, Lake Preston, Langford, Leola, Marion, Martin, Marvin, McIntosh, Mellette, Midland, Miller, Mobridge, Montrose, Murdo, New Effington, Northville, Oacoma, Oelrichs, Oldham, Onida, Peever, Philip, Pickstown, Pierpont, Pierre, Plankinton, Platte, Pollock, Presho, Pukwana, Ramona, Redfield, Roscoe, Roslyn, Salem, Selby, Seneca, South Shore, Springfield, Stickney, Stratford, Summit, Timber Lake, Tolstoy, Tulare, Valley Springs, Veblen, Viborg, Wagner, Warner, Wasta, Waubay, Webster, Wessington, White, White Lake, White River, Wilmot, Wolsey


  • South Dakota Codified Laws § 34-24A-1 mandate fluoridation for all communities of 500 or more, except where natural?fluoride content conforms to State Department of Health regulations.  Regulations specify adding fluoride when the natural content is less than 0.9 mg/L and require the system to maintain the fluoride concentration within a range of 0.9 mg/L to 1.7 mg/L with an average level of 1.2 mg/L. Public vote by special election was allowed, if petition filed within 120 days of passage of the law, which has since passed.  To learn more about this law, click here.



If you live in SD and want to get the fluoride out of your water contact Stuart Cooper, FAN’s campaign coordinator.


Water Systems County Population Fluoride (ppm)
Agar Sully 139 2.3
Alpena Jerauld 136 1.6
Bancroft Kingsbury 41 3.9
Belvidere Jackson 73 2.1
Big Bend Hyde 84 1.8
Bison Perkins 458 1.8
Brentwood Colony Faulk 90 2.9
Broadland Beadle 49 2.5
Butte-Meade RWS Butte 1,000 1.7
Carthage Miner 276 2.3
Clark Colony Clark 115 5.4
Clearfield Colony Charles Mix 50 1.5
Cloverleaf Farms Miner 65 4.7
Deadwood Lawrence 2,084 1.6
Deerfield Colony Edmonds 85 2.6
Delmont Douglas 283 1.7
Draper Jones 141 2.9
Elk Point Union 1,656 2.0
Evergreen Colony Faulk 60 2.6
Fordham Colony Clark 118 5.5
Forestburg Sanborn 129 1.7
Frankfort Spink 209 1.8
Glendale Colony Spink 100 2.5
Greenland Colony McPherson 80 2.6
Greenland Colony Douglas 103 1.6
Hillside Colony Spink 82 3.1
Howard Miner 1,167 2.6
Hutterville Colony Brown 89 4.2
Jamesville Colony Yankton 120 2.6
Lake Preston Kingsbury 787 2.8
Lakeview Colony Charles Mix 90 2.7
Lane Jerauld 83 1.7
Lemmon Perkins 1,864 3.5
Longlake Colony McPherson 82 2.6
Mansfield Brown 111 1.7
Maxwell Colony Hutchinson 100 2.4
Midland Haakon 276 2.3
Miller Hand 1,930 2.1
Mobile Dwellers-Aberdeen Brown 130 1.6
Morristown Corson 125 2.9
Mound City Campbell 112 2.9
New Undewood Pennington 520 1.8
Newport Colony Marshall 101 5.5
Old Elm Spring Colony Hutchinson 60 1.9
Onida Sully 848 2.6
Orient Faulk 89 2.7
Pearl Creek Colony Bendle 99 2.0
Pembrook Colony Edmonds 120 2.9
Plainview Colony Edmonds 130 2.3
Presho Lyman 756 2.0
Quinn Pennington 80 3.1
Ramona Lake 238 1.7
Reliance Lyman 191 2.5
Riverside Colony Beadle 130 3.0
Sanders Water Co Pennington 453 2.1
Sinai Brookings 129 1.5
South Lincoln RWS Lincoln 4,367 1.9
Alcester (South Lincoln RWS) Union 891 1.9
Chancellor (South Lincoln RWS) Turner 257 1.9
Spink Colony Spink 79 2.3
Spring Creek Colony McPherson 65 2.3
Spring Valley Colony Jerauld 100 2.5
State Training School Aurora 67 1.7
Sunset Colony Marshall 90 5.6
Thunderbird Colony Faulk 100 2.7
Tulare Spink 237 1.8
Virgil Beadle 37 1.6
Vivian Water Association Lyman 80 1.9
Wall Pennington 761 2.2
Westmiller Water Assoc Marshall 45 6.0
Yale Beadle 136 2.0
Zell Faulk 69 4.0
Information from CDC’s Fluoridation Census published in 1993.


In 2008, South Dakota ranked #42 out of 48 states for Hydrogen Fluoride releases (86,000  pounds). The following data comes from EPA’s Toxic Release Inventory (TRI). “Total releases” includes both water and air pollution. It’s important to note, however, that not all industries or sources that release fluoride into the environment are included in the TRI.

2008 Release
(In pounds)
Type of Industry Name of Industry
86,000 Coal-fired power plant OTTER TAIL POWER CO BIG STONE PLANT. 48450 144TH ST, BIG STONE CITY, South Dakota 57216 (GRANT)