Counties with the highest STI rates in Ohio

Emma Rubin // Stacker
- Chlamydia cases: 463.2 per 100K (#29 nationally, 54,459 cases)
- Gonorrhea cases: 195.4 per 100K (#21 nationally, 22,969 cases)
- Primary and secondary syphilis cases: 20.4 per 100K (#18 nationally, 2,402 cases)
State-level statistics
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- Chlamydia cases: 246.9 per 100K people (68 cases)
- Gonorrhea cases: 47.2 per 100K people (13 cases)
- Syphilis cases (non-congenital): 3.6 per 100K people (1 case)
--- Primary and secondary syphilis: 3.6 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#50. Henry County
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- Chlamydia cases: 251.0 per 100K people (68 cases)
- Gonorrhea cases: 92.3 per 100K people (25 cases)
- Syphilis cases (non-congenital): 7.4 per 100K people (2 cases)
--- Primary and secondary syphilis: 7.4 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#49. Pike County
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- Chlamydia cases: 251.5 per 100K people (77 cases)
- Gonorrhea cases: 32.7 per 100K people (10 cases)
- Syphilis cases (non-congenital): 3.3 per 100K people (1 case)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 3.3 per 100K people (1 case)
#48. Hardin County
Madison Muskopf // Shutterstock
- Chlamydia cases: 254.0 per 100K people (93 cases)
- Gonorrhea cases: 46.4 per 100K people (17 cases)
- Syphilis cases (non-congenital): 2.7 per 100K people (1 case)
--- Primary and secondary syphilis: 2.7 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#47. Coshocton County
Mikhalis Makarov // Shutterstock
- Chlamydia cases: 255.1 per 100K people (592 cases)
- Gonorrhea cases: 87.1 per 100K people (202 cases)
- Syphilis cases (non-congenital): 4.7 per 100K people (11 case)
--- Primary and secondary syphilis: 3.0 per 100K people (7 cases)
--- Nonprimary and nonsecondary early syphilis: 1.7 per 100K people (4 cases)
#46. Lake County
Roberto Galan // Shutterstock
- Chlamydia cases: 256.8 per 100K people (109 cases)
- Gonorrhea cases: 35.3 per 100K people (15 cases)
- Syphilis cases (non-congenital): 2.4 per 100K people (1 case)
--- Primary and secondary syphilis: 2.4 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#45. Fulton County
Kenneth Keifer // Shutterstock
- Chlamydia cases: 256.8 per 100K people (114 cases)
- Gonorrhea cases: 87.9 per 100K people (39 cases)
- Syphilis cases (non-congenital): 24.8 per 100K people (11 case)
--- Primary and secondary syphilis: 20.3 per 100K people (9 cases)
--- Nonprimary and nonsecondary early syphilis: 4.5 per 100K people (2 cases)
#44. Madison County
Anne Kitzman // Shutterstock
- Chlamydia cases: 259.7 per 100K people (49 cases)
- Gonorrhea cases: 79.5 per 100K people (15 cases)
- Syphilis cases (non-congenital): 10.6 per 100K people (2 cases)
--- Primary and secondary syphilis: 10.6 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#43. Paulding County
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- Chlamydia cases: 265.7 per 100K people (557 cases)
- Gonorrhea cases: 74.4 per 100K people (156 cases)
- Syphilis cases (non-congenital): 6.7 per 100K people (14 cases)
--- Primary and secondary syphilis: 5.2 per 100K people (11 case)
--- Nonprimary and nonsecondary early syphilis: 1.4 per 100K people (3 cases)
#42. Clermont County
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- Chlamydia cases: 267.2 per 100K people (123 cases)
- Gonorrhea cases: 60.8 per 100K people (28 cases)
- Syphilis cases (non-congenital): 15.2 per 100K people (7 cases)
--- Primary and secondary syphilis: 6.5 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 8.7 per 100K people (4 cases)
#41. Logan County
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- Chlamydia cases: 270.5 per 100K people (208 cases)
- Gonorrhea cases: 70.2 per 100K people (54 cases)
- Syphilis cases (non-congenital): 5.2 per 100K people (4 cases)
--- Primary and secondary syphilis: 3.9 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 1.3 per 100K people (1 case)
#40. Ross County
Keith J Finks // Shutterstock
- Chlamydia cases: 277.6 per 100K people (162 cases)
- Gonorrhea cases: 54.8 per 100K people (32 cases)
- Syphilis cases (non-congenital): 3.4 per 100K people (2 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 3.4 per 100K people (2 cases)
#39. Huron County
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- Chlamydia cases: 279.3 per 100K people (134 cases)
- Gonorrhea cases: 89.6 per 100K people (43 cases)
- Syphilis cases (non-congenital): 2.1 per 100K people (1 case)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 2.1 per 100K people (1 case)
#38. Shelby County
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- Chlamydia cases: 285.5 per 100K people (185 cases)
- Gonorrhea cases: 146.6 per 100K people (95 cases)
- Syphilis cases (non-congenital): 4.6 per 100K people (3 cases)
--- Primary and secondary syphilis: 1.5 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 3.1 per 100K people (2 cases)
#37. Jefferson County
JNix // Shutterstock
- Chlamydia cases: 285.7 per 100K people (120 cases)
- Gonorrhea cases: 61.9 per 100K people (26 cases)
- Syphilis cases (non-congenital): 4.8 per 100K people (2 cases)
--- Primary and secondary syphilis: 2.4 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 2.4 per 100K people (1 case)
#36. Clinton County
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- Chlamydia cases: 287.8 per 100K people (187 cases)
- Gonorrhea cases: 70.8 per 100K people (46 cases)
- Syphilis cases (non-congenital): 18.5 per 100K people (12 cases)
--- Primary and secondary syphilis: 9.2 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 9.2 per 100K people (6 cases)
#35. Union County
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- Chlamydia cases: 287.8 per 100K people (169 cases)
- Gonorrhea cases: 88.6 per 100K people (52 cases)
- Syphilis cases (non-congenital): 6.8 per 100K people (4 cases)
--- Primary and secondary syphilis: 5.1 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 1.7 per 100K people (1 case)
#34. Sandusky County
Kenneth Sponsler // Shutterstock
- Chlamydia cases: 295.5 per 100K people (533 cases)
- Gonorrhea cases: 120.8 per 100K people (218 cases)
- Syphilis cases (non-congenital): 13.3 per 100K people (24 cases)
--- Primary and secondary syphilis: 9.4 per 100K people (17 cases)
--- Nonprimary and nonsecondary early syphilis: 3.9 per 100K people (7 cases)
#33. Licking County
Roberto Galan // Shutterstock
- Chlamydia cases: 299.6 per 100K people (110 cases)
- Gonorrhea cases: 70.8 per 100K people (26 cases)
- Syphilis cases (non-congenital): 5.4 per 100K people (2 cases)
--- Primary and secondary syphilis: 2.7 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 2.7 per 100K people (1 case)
#32. Williams County
Almal3xia // Shutterstock
- Chlamydia cases: 301.6 per 100K people (508 cases)
- Gonorrhea cases: 95.0 per 100K people (160 cases)
- Syphilis cases (non-congenital): 5.9 per 100K people (10 cases)
--- Primary and secondary syphilis: 4.8 per 100K people (8 cases)
--- Nonprimary and nonsecondary early syphilis: 1.2 per 100K people (2 cases)
#31. Greene County
redtbird02 // Shutterstock
- Chlamydia cases: 303.1 per 100K people (295 cases)
- Gonorrhea cases: 161.3 per 100K people (157 cases)
- Syphilis cases (non-congenital): 5.1 per 100K people (5 cases)
--- Primary and secondary syphilis: 4.1 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 1.0 per 100K people (1 case)
#30. Ashtabula County
BLAZE Pro // Shutterstock
- Chlamydia cases: 303.8 per 100K people (281 case)
- Gonorrhea cases: 58.4 per 100K people (54 cases)
- Syphilis cases (non-congenital): 2.2 per 100K people (2 cases)
--- Primary and secondary syphilis: 1.1 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 1.1 per 100K people (1 case)
#29. Tuscarawas County
Eric Glenn // Shutterstock
- Chlamydia cases: 304.2 per 100K people (490 cases)
- Gonorrhea cases: 97.5 per 100K people (157 cases)
- Syphilis cases (non-congenital): 17.4 per 100K people (28 cases)
--- Primary and secondary syphilis: 14.3 per 100K people (23 cases)
--- Nonprimary and nonsecondary early syphilis: 3.1 per 100K people (5 cases)
#28. Fairfield County
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- Chlamydia cases: 305.6 per 100K people (117 cases)
- Gonorrhea cases: 96.6 per 100K people (37 cases)
- Syphilis cases (non-congenital): 10.4 per 100K people (4 cases)
--- Primary and secondary syphilis: 2.6 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 7.8 per 100K people (3 cases)
#27. Guernsey County
jul11h // Shutterstock
- Chlamydia cases: 310.4 per 100K people (504 cases)
- Gonorrhea cases: 108.4 per 100K people (176 cases)
- Syphilis cases (non-congenital): 4.3 per 100K people (7 cases)
--- Primary and secondary syphilis: 2.5 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 1.8 per 100K people (3 cases)
#26. Portage County
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- Chlamydia cases: 323.8 per 100K people (429 cases)
- Gonorrhea cases: 66.4 per 100K people (88 cases)
- Syphilis cases (non-congenital): 7.5 per 100K people (10 cases)
--- Primary and secondary syphilis: 4.5 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 3.0 per 100K people (4 cases)
#25. Wood County
Joshua D'Ariano // Shutterstock
- Chlamydia cases: 333.5 per 100K people (249 cases)
- Gonorrhea cases: 58.9 per 100K people (44 cases)
- Syphilis cases (non-congenital): 6.7 per 100K people (5 cases)
--- Primary and secondary syphilis: 4.0 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 2.7 per 100K people (2 cases)
#24. Hancock County
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- Chlamydia cases: 335.6 per 100K people (97 cases)
- Gonorrhea cases: 86.5 per 100K people (25 cases)
- Syphilis cases (non-congenital): 13.8 per 100K people (4 cases)
--- Primary and secondary syphilis: 13.8 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#23. Fayette County
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- Chlamydia cases: 344.2 per 100K people (189 cases)
- Gonorrhea cases: 71.0 per 100K people (39 cases)
- Syphilis cases (non-congenital): 3.6 per 100K people (2 cases)
--- Primary and secondary syphilis: 3.6 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#22. Seneca County
The American Explorer // Shutterstock
- Chlamydia cases: 344.7 per 100K people (198 cases)
- Gonorrhea cases: 114.9 per 100K people (66 cases)
- Syphilis cases (non-congenital): 3.5 per 100K people (2 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 3.5 per 100K people (2 cases)
#21. Lawrence County
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- Chlamydia cases: 347.3 per 100K people (145 cases)
- Gonorrhea cases: 64.7 per 100K people (27 cases)
- Syphilis cases (non-congenital): 7.2 per 100K people (3 cases)
--- Primary and secondary syphilis: 4.8 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 2.4 per 100K people (1 case)
#20. Crawford County
Roberto Galan // Shutterstock
- Chlamydia cases: 353.9 per 100K people (135 cases)
- Gonorrhea cases: 76.0 per 100K people (29 cases)
- Syphilis cases (non-congenital): 0 cases
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 0 cases
#19. Defiance County
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- Chlamydia cases: 365.4 per 100K people (1,426 cases)
- Gonorrhea cases: 128.4 per 100K people (501 case)
- Syphilis cases (non-congenital): 11.0 per 100K people (43 cases)
--- Primary and secondary syphilis: 6.9 per 100K people (27 cases)
--- Nonprimary and nonsecondary early syphilis: 4.1 per 100K people (16 cases)
#18. Butler County
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- Chlamydia cases: 366.9 per 100K people (317 cases)
- Gonorrhea cases: 155.1 per 100K people (134 cases)
- Syphilis cases (non-congenital): 9.3 per 100K people (8 cases)
--- Primary and secondary syphilis: 8.1 per 100K people (7 cases)
--- Nonprimary and nonsecondary early syphilis: 1.2 per 100K people (1 case)
#17. Muskingum County
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- Chlamydia cases: 384.4 per 100K people (1,213 cases)
- Gonorrhea cases: 147.3 per 100K people (465 cases)
- Syphilis cases (non-congenital): 9.5 per 100K people (30 cases)
--- Primary and secondary syphilis: 5.7 per 100K people (18 cases)
--- Nonprimary and nonsecondary early syphilis: 3.8 per 100K people (12 cases)
#16. Lorain County
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- Chlamydia cases: 387.4 per 100K people (780 cases)
- Gonorrhea cases: 191.7 per 100K people (386 cases)
- Syphilis cases (non-congenital): 6.5 per 100K people (13 cases)
--- Primary and secondary syphilis: 4.5 per 100K people (9 cases)
--- Nonprimary and nonsecondary early syphilis: 2.0 per 100K people (4 cases)
#15. Trumbull County
Wendy van Overstreet // Shutterstock
- Chlamydia cases: 402.9 per 100K people (250 cases)
- Gonorrhea cases: 85.4 per 100K people (53 cases)
- Syphilis cases (non-congenital): 14.5 per 100K people (9 cases)
--- Primary and secondary syphilis: 11.3 per 100K people (7 cases)
--- Nonprimary and nonsecondary early syphilis: 3.2 per 100K people (2 cases)
#14. Athens County
Donna Wickerham // Shutterstock
- Chlamydia cases: 432.9 per 100K people (542 cases)
- Gonorrhea cases: 134.2 per 100K people (168 cases)
- Syphilis cases (non-congenital): 8.8 per 100K people (11 case)
--- Primary and secondary syphilis: 5.6 per 100K people (7 cases)
--- Nonprimary and nonsecondary early syphilis: 3.2 per 100K people (4 cases)
#13. Richland County
BLAZE Pro // Shutterstock
- Chlamydia cases: 434.1 per 100K people (1,623 cases)
- Gonorrhea cases: 219.1 per 100K people (819 cases)
- Syphilis cases (non-congenital): 14.2 per 100K people (53 cases)
--- Primary and secondary syphilis: 8.8 per 100K people (33 cases)
--- Nonprimary and nonsecondary early syphilis: 5.3 per 100K people (20 cases)
#12. Stark County
James W. Thompson // Shutterstock
- Chlamydia cases: 438.0 per 100K people (286 cases)
- Gonorrhea cases: 116.4 per 100K people (76 cases)
- Syphilis cases (non-congenital): 16.8 per 100K people (11 case)
--- Primary and secondary syphilis: 7.7 per 100K people (5 cases)
--- Nonprimary and nonsecondary early syphilis: 9.2 per 100K people (6 cases)
#11. Marion County
James Marciniak // Shutterstock
- Chlamydia cases: 468.9 per 100K people (636 cases)
- Gonorrhea cases: 273.5 per 100K people (371 case)
- Syphilis cases (non-congenital): 53.1 per 100K people (72 cases)
--- Primary and secondary syphilis: 38.3 per 100K people (52 cases)
--- Nonprimary and nonsecondary early syphilis: 14.7 per 100K people (20 cases)
#10. Clark County
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- Chlamydia cases: 488.2 per 100K people (1,107 cases)
- Gonorrhea cases: 298.6 per 100K people (677 cases)
- Syphilis cases (non-congenital): 9.3 per 100K people (21 case)
--- Primary and secondary syphilis: 5.7 per 100K people (13 cases)
--- Nonprimary and nonsecondary early syphilis: 3.5 per 100K people (8 cases)
#9. Mahoning County
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- Chlamydia cases: 517.0 per 100K people (387 cases)
- Gonorrhea cases: 209.7 per 100K people (157 cases)
- Syphilis cases (non-congenital): 8.0 per 100K people (6 cases)
--- Primary and secondary syphilis: 5.3 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 2.7 per 100K people (2 cases)
#8. Erie County
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- Chlamydia cases: 535.1 per 100K people (2,877 cases)
- Gonorrhea cases: 310.1 per 100K people (1,667 cases)
- Syphilis cases (non-congenital): 27.3 per 100K people (147 cases)
--- Primary and secondary syphilis: 18.8 per 100K people (101 case)
--- Nonprimary and nonsecondary early syphilis: 8.6 per 100K people (46 cases)
#7. Summit County
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- Chlamydia cases: 542.3 per 100K people (2,906 cases)
- Gonorrhea cases: 336.5 per 100K people (1,803 cases)
- Syphilis cases (non-congenital): 33.0 per 100K people (177 cases)
--- Primary and secondary syphilis: 20.7 per 100K people (111 case)
--- Nonprimary and nonsecondary early syphilis: 12.3 per 100K people (66 cases)
#6. Montgomery County
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- Chlamydia cases: 629.5 per 100K people (640 cases)
- Gonorrhea cases: 233.1 per 100K people (237 cases)
- Syphilis cases (non-congenital): 18.7 per 100K people (19 cases)
--- Primary and secondary syphilis: 13.8 per 100K people (14 cases)
--- Nonprimary and nonsecondary early syphilis: 4.9 per 100K people (5 cases)
#5. Allen County
Sean Pavone // Shutterstock
- Chlamydia cases: 688.6 per 100K people (9,099 cases)
- Gonorrhea cases: 361.7 per 100K people (4,780 cases)
- Syphilis cases (non-congenital): 72.3 per 100K people (956 cases)
--- Primary and secondary syphilis: 50.5 per 100K people (667 cases)
--- Nonprimary and nonsecondary early syphilis: 21.9 per 100K people (289 cases)
#4. Franklin County
Michael Shake // Shutterstock
- Chlamydia cases: 700.6 per 100K people (3,007 cases)
- Gonorrhea cases: 374.4 per 100K people (1,607 cases)
- Syphilis cases (non-congenital): 30.8 per 100K people (132 cases)
--- Primary and secondary syphilis: 20.3 per 100K people (87 cases)
--- Nonprimary and nonsecondary early syphilis: 10.5 per 100K people (45 cases)
#3. Lucas County
photo.ua // Shutterstock
- Chlamydia cases: 801.1 per 100K people (6,618 cases)
- Gonorrhea cases: 453.1 per 100K people (3,743 cases)
- Syphilis cases (non-congenital): 22.6 per 100K people (187 cases)
--- Primary and secondary syphilis: 13.1 per 100K people (108 cases)
--- Nonprimary and nonsecondary early syphilis: 9.6 per 100K people (79 cases)
#2. Hamilton County
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- Chlamydia cases: 839.4 per 100K people (10,487 cases)
- Gonorrhea cases: 526.4 per 100K people (6,577 cases)
- Syphilis cases (non-congenital): 36.5 per 100K people (456 cases)
--- Primary and secondary syphilis: 25.1 per 100K people (313 cases)
--- Nonprimary and nonsecondary early syphilis: 11.4 per 100K people (143 cases)

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

#1. Cuyahoga County
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