Counties with the highest STI rates in Mississippi

Emma Rubin // Stacker
- Chlamydia cases: 781.2 per 100K (#2 nationally, 22,968 cases)
- Gonorrhea cases: 371.9 per 100K (#1 nationally, 10,933 cases)
- Primary and secondary syphilis cases: 31.1 per 100K (#5 nationally, 913 cases)
State-level statistics
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- Chlamydia cases: 607.1 per 100K people (84 cases)
- Gonorrhea cases: 513.2 per 100K people (71 case)
- Syphilis cases (non-congenital): 43.4 per 100K people (6 cases)
--- Primary and secondary syphilis: 14.5 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 28.9 per 100K people (4 cases)
#50. Walthall County
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- Chlamydia cases: 610.6 per 100K people (192 cases)
- Gonorrhea cases: 324.4 per 100K people (102 cases)
- Syphilis cases (non-congenital): 60.4 per 100K people (19 cases)
--- Primary and secondary syphilis: 41.3 per 100K people (13 cases)
--- Nonprimary and nonsecondary early syphilis: 19.1 per 100K people (6 cases)
#49. Pontotoc County
SevenMaps // Shutterstock
- Chlamydia cases: 614.5 per 100K people (80 cases)
- Gonorrhea cases: 314.9 per 100K people (41 case)
- Syphilis cases (non-congenital): 23.0 per 100K people (3 cases)
--- Primary and secondary syphilis: 23.0 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#48. Calhoun County
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- Chlamydia cases: 626.5 per 100K people (74 cases)
- Gonorrhea cases: 381.0 per 100K people (45 cases)
- Syphilis cases (non-congenital): 93.1 per 100K people (11 case)
--- Primary and secondary syphilis: 42.3 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 50.8 per 100K people (6 cases)
#47. Lawrence County
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- Chlamydia cases: 627.6 per 100K people (153 cases)
- Gonorrhea cases: 512.8 per 100K people (125 cases)
- Syphilis cases (non-congenital): 90.2 per 100K people (22 cases)
--- Primary and secondary syphilis: 57.4 per 100K people (14 cases)
--- Nonprimary and nonsecondary early syphilis: 32.8 per 100K people (8 cases)
#46. Marion County
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- Chlamydia cases: 628.9 per 100K people (411 case)
- Gonorrhea cases: 275.4 per 100K people (180 cases)
- Syphilis cases (non-congenital): 68.9 per 100K people (45 cases)
--- Primary and secondary syphilis: 52.0 per 100K people (34 cases)
--- Nonprimary and nonsecondary early syphilis: 16.8 per 100K people (11 case)
#45. Lamar County
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- Chlamydia cases: 636.3 per 100K people (79 cases)
- Gonorrhea cases: 402.7 per 100K people (50 cases)
- Syphilis cases (non-congenital): 48.3 per 100K people (6 cases)
--- Primary and secondary syphilis: 40.3 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 8.1 per 100K people (1 case)
#44. Yalobusha County
SevenMaps // Shutterstock
- Chlamydia cases: 676.4 per 100K people (120 cases)
- Gonorrhea cases: 310.0 per 100K people (55 cases)
- Syphilis cases (non-congenital): 22.5 per 100K people (4 cases)
--- Primary and secondary syphilis: 22.5 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#43. Attala County
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- Chlamydia cases: 681.9 per 100K people (196 cases)
- Gonorrhea cases: 396.6 per 100K people (114 cases)
- Syphilis cases (non-congenital): 7.0 per 100K people (2 cases)
--- Primary and secondary syphilis: 7.0 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#42. Adams County
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- Chlamydia cases: 682.1 per 100K people (388 cases)
- Gonorrhea cases: 300.6 per 100K people (171 case)
- Syphilis cases (non-congenital): 42.2 per 100K people (24 cases)
--- Primary and secondary syphilis: 26.4 per 100K people (15 cases)
--- Nonprimary and nonsecondary early syphilis: 15.8 per 100K people (9 cases)
#41. Lafayette County
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- Chlamydia cases: 699.8 per 100K people (236 cases)
- Gonorrhea cases: 344.0 per 100K people (116 cases)
- Syphilis cases (non-congenital): 38.5 per 100K people (13 cases)
--- Primary and secondary syphilis: 26.7 per 100K people (9 cases)
--- Nonprimary and nonsecondary early syphilis: 11.9 per 100K people (4 cases)
#40. Marshall County
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- Chlamydia cases: 707.7 per 100K people (1,019 cases)
- Gonorrhea cases: 423.0 per 100K people (609 cases)
- Syphilis cases (non-congenital): 25.7 per 100K people (37 cases)
--- Primary and secondary syphilis: 18.1 per 100K people (26 cases)
--- Nonprimary and nonsecondary early syphilis: 7.6 per 100K people (11 case)
#39. Jackson County
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- Chlamydia cases: 712.0 per 100K people (116 cases)
- Gonorrhea cases: 429.7 per 100K people (70 cases)
- Syphilis cases (non-congenital): 79.8 per 100K people (13 cases)
--- Primary and secondary syphilis: 30.7 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 49.1 per 100K people (8 cases)
#38. Jasper County
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- Chlamydia cases: 733.6 per 100K people (61 case)
- Gonorrhea cases: 384.8 per 100K people (32 cases)
- Syphilis cases (non-congenital): 0 cases
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 0 cases
#37. Wilkinson County
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- Chlamydia cases: 739.2 per 100K people (204 cases)
- Gonorrhea cases: 554.4 per 100K people (153 cases)
- Syphilis cases (non-congenital): 76.1 per 100K people (21 case)
--- Primary and secondary syphilis: 58.0 per 100K people (16 cases)
--- Nonprimary and nonsecondary early syphilis: 18.1 per 100K people (5 cases)
#36. Scott County
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- Chlamydia cases: 744.0 per 100K people (136 cases)
- Gonorrhea cases: 361.1 per 100K people (66 cases)
- Syphilis cases (non-congenital): 153.2 per 100K people (28 cases)
--- Primary and secondary syphilis: 109.4 per 100K people (20 cases)
--- Nonprimary and nonsecondary early syphilis: 43.8 per 100K people (8 cases)
#35. Covington County
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- Chlamydia cases: 796.7 per 100K people (231 case)
- Gonorrhea cases: 372.5 per 100K people (108 cases)
- Syphilis cases (non-congenital): 69.0 per 100K people (20 cases)
--- Primary and secondary syphilis: 34.5 per 100K people (10 cases)
--- Nonprimary and nonsecondary early syphilis: 34.5 per 100K people (10 cases)
#34. Neshoba County
Chad Robertson Media // Shutterstock
- Chlamydia cases: 798.6 per 100K people (533 cases)
- Gonorrhea cases: 451.0 per 100K people (301 case)
- Syphilis cases (non-congenital): 62.9 per 100K people (42 cases)
--- Primary and secondary syphilis: 46.4 per 100K people (31 case)
--- Nonprimary and nonsecondary early syphilis: 16.5 per 100K people (11 case)
#33. Jones County
SevenMaps // Shutterstock
- Chlamydia cases: 801.7 per 100K people (158 cases)
- Gonorrhea cases: 542.9 per 100K people (107 cases)
- Syphilis cases (non-congenital): 45.7 per 100K people (9 cases)
--- Primary and secondary syphilis: 35.5 per 100K people (7 cases)
--- Nonprimary and nonsecondary early syphilis: 10.1 per 100K people (2 cases)
#32. Wayne County
Malachi Jacobs // Shutterstock
- Chlamydia cases: 803.9 per 100K people (212 cases)
- Gonorrhea cases: 436.1 per 100K people (115 cases)
- Syphilis cases (non-congenital): 15.2 per 100K people (4 cases)
--- Primary and secondary syphilis: 11.4 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 3.8 per 100K people (1 case)
#31. Yazoo County
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- Chlamydia cases: 812.0 per 100K people (79 cases)
- Gonorrhea cases: 442.0 per 100K people (43 cases)
- Syphilis cases (non-congenital): 30.8 per 100K people (3 cases)
--- Primary and secondary syphilis: 30.8 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#30. Montgomery County
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- Chlamydia cases: 856.6 per 100K people (710 cases)
- Gonorrhea cases: 647.9 per 100K people (537 cases)
- Syphilis cases (non-congenital): 79.6 per 100K people (66 cases)
--- Primary and secondary syphilis: 53.1 per 100K people (44 cases)
--- Nonprimary and nonsecondary early syphilis: 26.5 per 100K people (22 cases)
#29. Lee County
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- Chlamydia cases: 885.4 per 100K people (459 cases)
- Gonorrhea cases: 428.2 per 100K people (222 cases)
- Syphilis cases (non-congenital): 67.5 per 100K people (35 cases)
--- Primary and secondary syphilis: 48.2 per 100K people (25 cases)
--- Nonprimary and nonsecondary early syphilis: 19.3 per 100K people (10 cases)
#28. Oktibbeha County
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- Chlamydia cases: 894.2 per 100K people (520 cases)
- Gonorrhea cases: 564.1 per 100K people (328 cases)
- Syphilis cases (non-congenital): 68.8 per 100K people (40 cases)
--- Primary and secondary syphilis: 29.2 per 100K people (17 cases)
--- Nonprimary and nonsecondary early syphilis: 39.6 per 100K people (23 cases)
#27. Lowndes County
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- Chlamydia cases: 895.0 per 100K people (391 case)
- Gonorrhea cases: 489.8 per 100K people (214 cases)
- Syphilis cases (non-congenital): 50.4 per 100K people (22 cases)
--- Primary and secondary syphilis: 27.5 per 100K people (12 cases)
--- Nonprimary and nonsecondary early syphilis: 22.9 per 100K people (10 cases)
#26. Washington County
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- Chlamydia cases: 906.1 per 100K people (307 cases)
- Gonorrhea cases: 546.0 per 100K people (185 cases)
- Syphilis cases (non-congenital): 62.0 per 100K people (21 case)
--- Primary and secondary syphilis: 38.4 per 100K people (13 cases)
--- Nonprimary and nonsecondary early syphilis: 23.6 per 100K people (8 cases)
#25. Monroe County
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- Chlamydia cases: 915.0 per 100K people (161 case)
- Gonorrhea cases: 471.7 per 100K people (83 cases)
- Syphilis cases (non-congenital): 68.2 per 100K people (12 cases)
--- Primary and secondary syphilis: 22.7 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 45.5 per 100K people (8 cases)
#24. Winston County
Chad Robertson Media // Shutterstock
- Chlamydia cases: 924.7 per 100K people (196 cases)
- Gonorrhea cases: 504.8 per 100K people (107 cases)
- Syphilis cases (non-congenital): 28.3 per 100K people (6 cases)
--- Primary and secondary syphilis: 9.4 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 18.9 per 100K people (4 cases)
#23. Leake County
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- Chlamydia cases: 933.9 per 100K people (407 cases)
- Gonorrhea cases: 468.1 per 100K people (204 cases)
- Syphilis cases (non-congenital): 43.6 per 100K people (19 cases)
--- Primary and secondary syphilis: 25.2 per 100K people (11 case)
--- Nonprimary and nonsecondary early syphilis: 18.4 per 100K people (8 cases)
#22. Warren County
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- Chlamydia cases: 936.1 per 100K people (200 cases)
- Gonorrhea cases: 468.1 per 100K people (100 cases)
- Syphilis cases (non-congenital): 28.1 per 100K people (6 cases)
--- Primary and secondary syphilis: 18.7 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 9.4 per 100K people (2 cases)
#21. Grenada County
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- Chlamydia cases: 946.1 per 100K people (117 cases)
- Gonorrhea cases: 574.2 per 100K people (71 case)
- Syphilis cases (non-congenital): 40.4 per 100K people (5 cases)
--- Primary and secondary syphilis: 8.1 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 32.3 per 100K people (4 cases)
#20. Tallahatchie County
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- Chlamydia cases: 961.0 per 100K people (107 cases)
- Gonorrhea cases: 494.0 per 100K people (55 cases)
- Syphilis cases (non-congenital): 71.9 per 100K people (8 cases)
--- Primary and secondary syphilis: 53.9 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 18.0 per 100K people (2 cases)
#19. Jefferson Davis County
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- Chlamydia cases: 976.3 per 100K people (248 cases)
- Gonorrhea cases: 350.4 per 100K people (89 cases)
- Syphilis cases (non-congenital): 3.9 per 100K people (1 case)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 3.9 per 100K people (1 case)
#18. Sunflower County
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- Chlamydia cases: 992.4 per 100K people (326 cases)
- Gonorrhea cases: 566.2 per 100K people (186 cases)
- Syphilis cases (non-congenital): 63.9 per 100K people (21 case)
--- Primary and secondary syphilis: 42.6 per 100K people (14 cases)
--- Nonprimary and nonsecondary early syphilis: 21.3 per 100K people (7 cases)
#17. Panola County
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- Chlamydia cases: 1,040.5 per 100K people (177 cases)
- Gonorrhea cases: 770.1 per 100K people (131 case)
- Syphilis cases (non-congenital): 52.9 per 100K people (9 cases)
--- Primary and secondary syphilis: 35.3 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 17.6 per 100K people (3 cases)
#16. Chickasaw County
TLF Images // Shutterstock
- Chlamydia cases: 1,052.5 per 100K people (319 cases)
- Gonorrhea cases: 409.1 per 100K people (124 cases)
- Syphilis cases (non-congenital): 13.2 per 100K people (4 cases)
--- Primary and secondary syphilis: 9.9 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 3.3 per 100K people (1 case)
#15. Bolivar County
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- Chlamydia cases: 1,063.2 per 100K people (425 cases)
- Gonorrhea cases: 758.0 per 100K people (303 cases)
- Syphilis cases (non-congenital): 35.0 per 100K people (14 cases)
--- Primary and secondary syphilis: 12.5 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 22.5 per 100K people (9 cases)
#14. Pike County
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- Chlamydia cases: 1,140.3 per 100K people (888 cases)
- Gonorrhea cases: 697.3 per 100K people (543 cases)
- Syphilis cases (non-congenital): 156.7 per 100K people (122 cases)
--- Primary and secondary syphilis: 109.1 per 100K people (85 cases)
--- Nonprimary and nonsecondary early syphilis: 47.5 per 100K people (37 cases)
#13. Forrest County
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- Chlamydia cases: 1,165.4 per 100K people (216 cases)
- Gonorrhea cases: 755.3 per 100K people (140 cases)
- Syphilis cases (non-congenital): 86.3 per 100K people (16 cases)
--- Primary and secondary syphilis: 21.6 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 64.7 per 100K people (12 cases)
#12. Clay County
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- Chlamydia cases: 1,179.7 per 100K people (85 cases)
- Gonorrhea cases: 582.9 per 100K people (42 cases)
- Syphilis cases (non-congenital): 27.8 per 100K people (2 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 27.8 per 100K people (2 cases)
#11. Jefferson County
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- Chlamydia cases: 1,214.5 per 100K people (340 cases)
- Gonorrhea cases: 507.2 per 100K people (142 cases)
- Syphilis cases (non-congenital): 35.7 per 100K people (10 cases)
--- Primary and secondary syphilis: 21.4 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 14.3 per 100K people (4 cases)
#10. Copiah County
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- Chlamydia cases: 1,254.6 per 100K people (127 cases)
- Gonorrhea cases: 740.9 per 100K people (75 cases)
- Syphilis cases (non-congenital): 49.4 per 100K people (5 cases)
--- Primary and secondary syphilis: 39.5 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 9.9 per 100K people (1 case)
#9. Noxubee County
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- Chlamydia cases: 1,283.1 per 100K people (47 cases)
- Gonorrhea cases: 436.8 per 100K people (16 cases)
- Syphilis cases (non-congenital): 54.6 per 100K people (2 cases)
--- Primary and secondary syphilis: 54.6 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#8. Sharkey County
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- Chlamydia cases: 1,310.0 per 100K people (2,917 cases)
- Gonorrhea cases: 864.9 per 100K people (1,926 cases)
- Syphilis cases (non-congenital): 86.2 per 100K people (192 cases)
--- Primary and secondary syphilis: 36.4 per 100K people (81 case)
--- Nonprimary and nonsecondary early syphilis: 49.8 per 100K people (111 case)
#7. Hinds County
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- Chlamydia cases: 1,377.3 per 100K people (104 cases)
- Gonorrhea cases: 569.5 per 100K people (43 cases)
- Syphilis cases (non-congenital): 26.5 per 100K people (2 cases)
--- Primary and secondary syphilis: 13.2 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 13.2 per 100K people (1 case)
#6. Humphreys County
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- Chlamydia cases: 1,382.0 per 100K people (134 cases)
- Gonorrhea cases: 660.1 per 100K people (64 cases)
- Syphilis cases (non-congenital): 61.9 per 100K people (6 cases)
--- Primary and secondary syphilis: 61.9 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#5. Tunica County
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- Chlamydia cases: 1,458.8 per 100K people (402 cases)
- Gonorrhea cases: 751.2 per 100K people (207 cases)
- Syphilis cases (non-congenital): 18.1 per 100K people (5 cases)
--- Primary and secondary syphilis: 7.3 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 10.9 per 100K people (3 cases)
#4. Leflore County
SevenMaps // Shutterstock
- Chlamydia cases: 1,499.6 per 100K people (89 cases)
- Gonorrhea cases: 674.0 per 100K people (40 cases)
- Syphilis cases (non-congenital): 33.7 per 100K people (2 cases)
--- Primary and secondary syphilis: 33.7 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#3. Quitman County
SevenMaps // Shutterstock
- Chlamydia cases: 1,648.9 per 100K people (272 cases)
- Gonorrhea cases: 1,000.2 per 100K people (165 cases)
- Syphilis cases (non-congenital): 42.4 per 100K people (7 cases)
--- Primary and secondary syphilis: 30.3 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 12.1 per 100K people (2 cases)
#2. Holmes County
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- Chlamydia cases: 1,826.0 per 100K people (380 cases)
- Gonorrhea cases: 889.0 per 100K people (185 cases)
- Syphilis cases (non-congenital): 124.9 per 100K people (26 cases)
--- Primary and secondary syphilis: 91.3 per 100K people (19 cases)
--- Nonprimary and nonsecondary early syphilis: 33.6 per 100K people (7 cases)

This story features data reporting and writing by Emma Rubin and is part of a series utilizing data automation across 49 states.

#1. Coahoma County
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