| City |
Population (thousands) |
Fluoridation Status |
Date Instituted |
| New York City | 7263 | Artificial |
1965 |
| Los Angeles | 3259 | None | |
| Chicago | 3010 | Artificial |
1956 |
| Houston | 1729 | Natural/artificial |
1982 |
| Philadelphia | 1643 | Artificial |
1954 |
| Detroit | 1086 | Artificial |
1967 |
| San Diego | 1015 | Discontinued 1954 |
1952 |
| Dallas | 1004 | Artificial |
1966 |
| San Antonio | 914 | None | |
| Phoenix | 894 | None | |
| Baltimore | 753 | Artificial |
1952 |
| San Francisco | 749 | Artificial |
1952 |
| Indianapolis | 720 | Artificial |
1951 |
| San Jose | 712 | None | |
| Memphis | 653 | Artificial |
1970 |
| Washington, D.C. | 626 | Artificial |
1952 |
| Jacksonville | 610 | Natural | |
| Milwaukee | 605 | Artificial |
1953 |
| Boston | 574 | Artificial |
1978 |
| Columbus | 566 | Artificial |
1973 |
| New Orleans | 554 | Artificial |
1974 |
| Cleveland | 536 | Artificial |
1956 |
| Denver | 505 | Artificial |
1954 |
| El Paso | 492 | Natural | |
| Seattle | 486 | Artificial |
1969 |
| Nashville-Davidson | 474 | Artificial |
1953 |
| Oklahoma City | 443 | Artificial |
1954 |
| Kansas City (Mo.) | 441 | Artificial |
1981 |
| Fort Worth | 430 | Artificial |
1965 |
| St. Louis | 426 | Artificial |
1955 |
| Sources: Bureau of the Census, National Institute of Dental Research | |||
