Table 9. Primary and Secondary Syphilis — Reported Cases and Rates of Reported Cases by State, Ranked by Rates, United States

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The table below is from Sexually Transmitted Infections Surveillance, 2023.

2023

Rank* State Cases Rate per 100,000 Population
1 South Dakota 675 73.4
2 New Mexico 773 36.6
3 Mississippi 886 30.1
4 Arkansas 896 29.2
5 Alabama 1,460 28.6
6 Oklahoma 1,121 27.7
7 Montana 312 27.5
8 Louisiana 1,196 26.1
9 Arizona 1,793 24.1
10 Nevada 725 22.7
11 Alaska 165 22.5
12 Missouri 1,332 21.5
13 Washington 1,665 21.3
14 Georgia 2,210 20.0
15 North Carolina 2,159 19.9
16 Florida 4,366 19.3
17 Oregon 811 19.2
18 Delaware 180 17.4
19 South Carolina 927 17.3
20 Ohio 1,925 16.3
21 California 6,348 16.3
22 Colorado 938 16.0
US TOTAL† 53,007 15.8
23 Texas 4,562 15.0
24 Tennessee 1,055 14.8
25 New York 2,887 14.8
26 Maryland 878 14.2
27 Kentucky 638 14.1
28 Kansas 397 13.5
29 Hawaii 182 12.7
30 North Dakota 97 12.4
31 Illinois 1,457 11.6
32 West Virginia 193 10.9
33 Virginia 932 10.7
34 Massachusetts 739 10.6
35 Nebraska 205 10.4
36 Iowa 331 10.3
37 Utah 330 9.7
38 Wisconsin 540 9.1
39 Pennsylvania 1,179 9.1
40 Minnesota 502 8.7
41 Indiana 599 8.7
42 Michigan 845 8.4
43 Rhode Island 90 8.2
44 New Jersey 751 8.1
45 Connecticut 265 7.3
46 Maine 74 5.3
47 New Hampshire 55 3.9
48 Idaho 74 3.8
49 Wyoming 13 2.2
50 Vermont 3 0.5
* States were ranked by unrounded rate, then case count, then in alphabetical order, with rates shown rounded to the nearest tenth.

† Total includes cases reported by the District of Columbia with 271 cases and a rate of 39.9, but excludes US territories.

NOTE: See Technical Notes for more information on syphilis case reporting. This report includes data from years that coincide with the COVID-19 pandemic, which introduced uncertainty and difficulty in interpreting case data. See Impact of COVID-19 on STIs for more information. Tennessee transitioned STI surveillance information systems in September of 2023 which may have impacted the overall case counts. Caution should be applied in interpretation of these data.
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Content Source:
National Center for HIV, Viral Hepatitis, STD, and Tuberculosis Prevention; About Division of STD Prevention