Counties with the highest STI rates in Texas

Emma Rubin // Stacker
- Chlamydia cases: 517.8 per 100K (#16 nationally, 155,483 cases)
- Gonorrhea cases: 206.5 per 100K (#17 nationally, 61,999 cases)
- Primary and secondary syphilis cases: 15.5 per 100K (#26 nationally, 4,655 cases)
State-level statistics
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- Chlamydia cases: 504.0 per 100K people (22 cases)
- Gonorrhea cases: 114.5 per 100K people (5 cases)
- Syphilis cases (non-congenital): 0 cases
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 0 cases
#50. Kimble County
Roberto Galan // Shutterstock
- Chlamydia cases: 504.0 per 100K people (436 cases)
- Gonorrhea cases: 276.3 per 100K people (239 cases)
- Syphilis cases (non-congenital): 11.6 per 100K people (10 cases)
--- Primary and secondary syphilis: 4.6 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 6.9 per 100K people (6 cases)
#49. Angelina County
SG Arts // Shutterstock
- Chlamydia cases: 504.9 per 100K people (848 cases)
- Gonorrhea cases: 176.8 per 100K people (297 cases)
- Syphilis cases (non-congenital): 28.0 per 100K people (47 cases)
--- Primary and secondary syphilis: 10.1 per 100K people (17 cases)
--- Nonprimary and nonsecondary early syphilis: 17.9 per 100K people (30 cases)
#48. Midland County
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- Chlamydia cases: 506.7 per 100K people (158 cases)
- Gonorrhea cases: 157.1 per 100K people (49 cases)
- Syphilis cases (non-congenital): 35.3 per 100K people (11 case)
--- Primary and secondary syphilis: 12.8 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 22.4 per 100K people (7 cases)
#47. Titus County
Barna Tanko // Shutterstock
- Chlamydia cases: 514.8 per 100K people (200 cases)
- Gonorrhea cases: 56.6 per 100K people (22 cases)
- Syphilis cases (non-congenital): 56.6 per 100K people (22 cases)
--- Primary and secondary syphilis: 28.3 per 100K people (11 case)
--- Nonprimary and nonsecondary early syphilis: 28.3 per 100K people (11 case)
#46. Jim Wells County
SevenMaps // Shutterstock
- Chlamydia cases: 514.9 per 100K people (110 cases)
- Gonorrhea cases: 177.9 per 100K people (38 cases)
- Syphilis cases (non-congenital): 182.6 per 100K people (39 cases)
--- Primary and secondary syphilis: 65.5 per 100K people (14 cases)
--- Nonprimary and nonsecondary early syphilis: 117.0 per 100K people (25 cases)
#45. Hockley County
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- Chlamydia cases: 518.0 per 100K people (124 cases)
- Gonorrhea cases: 200.5 per 100K people (48 cases)
- Syphilis cases (non-congenital): 4.2 per 100K people (1 case)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 4.2 per 100K people (1 case)
#44. Shelby County
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- Chlamydia cases: 520.8 per 100K people (363 cases)
- Gonorrhea cases: 219.5 per 100K people (153 cases)
- Syphilis cases (non-congenital): 34.4 per 100K people (24 cases)
--- Primary and secondary syphilis: 18.7 per 100K people (13 cases)
--- Nonprimary and nonsecondary early syphilis: 15.8 per 100K people (11 case)
#43. San Patricio County
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- Chlamydia cases: 520.9 per 100K people (110 cases)
- Gonorrhea cases: 151.5 per 100K people (32 cases)
- Syphilis cases (non-congenital): 9.5 per 100K people (2 cases)
--- Primary and secondary syphilis: 9.5 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#42. Moore County
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- Chlamydia cases: 523.7 per 100K people (63 cases)
- Gonorrhea cases: 365.8 per 100K people (44 cases)
- Syphilis cases (non-congenital): 33.3 per 100K people (4 cases)
--- Primary and secondary syphilis: 24.9 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 8.3 per 100K people (1 case)
#41. Morris County
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- Chlamydia cases: 527.6 per 100K people (170 cases)
- Gonorrhea cases: 335.2 per 100K people (108 cases)
- Syphilis cases (non-congenital): 55.9 per 100K people (18 cases)
--- Primary and secondary syphilis: 27.9 per 100K people (9 cases)
--- Nonprimary and nonsecondary early syphilis: 27.9 per 100K people (9 cases)
#40. Hale County
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- Chlamydia cases: 527.7 per 100K people (480 cases)
- Gonorrhea cases: 213.3 per 100K people (194 cases)
- Syphilis cases (non-congenital): 22.0 per 100K people (20 cases)
--- Primary and secondary syphilis: 6.6 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 15.4 per 100K people (14 cases)
#39. Victoria County
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- Chlamydia cases: 531.0 per 100K people (266 cases)
- Gonorrhea cases: 283.4 per 100K people (142 cases)
- Syphilis cases (non-congenital): 6.0 per 100K people (3 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 6.0 per 100K people (3 cases)
#38. Lamar County
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- Chlamydia cases: 539.7 per 100K people (106 cases)
- Gonorrhea cases: 157.8 per 100K people (31 case)
- Syphilis cases (non-congenital): 30.5 per 100K people (6 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 30.5 per 100K people (6 cases)
#37. Gonzales County
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- Chlamydia cases: 540.9 per 100K people (1,283 cases)
- Gonorrhea cases: 277.0 per 100K people (657 cases)
- Syphilis cases (non-congenital): 18.1 per 100K people (43 cases)
--- Primary and secondary syphilis: 10.1 per 100K people (24 cases)
--- Nonprimary and nonsecondary early syphilis: 8.0 per 100K people (19 cases)
#36. Smith County
Roberto Galan // Shutterstock
- Chlamydia cases: 546.9 per 100K people (69 cases)
- Gonorrhea cases: 253.6 per 100K people (32 cases)
- Syphilis cases (non-congenital): 47.6 per 100K people (6 cases)
--- Primary and secondary syphilis: 23.8 per 100K people (3 cases)
--- Nonprimary and nonsecondary early syphilis: 23.8 per 100K people (3 cases)
#35. Camp County
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- Chlamydia cases: 549.4 per 100K people (2,324 cases)
- Gonorrhea cases: 109.9 per 100K people (465 cases)
- Syphilis cases (non-congenital): 12.5 per 100K people (53 cases)
--- Primary and secondary syphilis: 3.3 per 100K people (14 cases)
--- Nonprimary and nonsecondary early syphilis: 9.2 per 100K people (39 cases)
#34. Cameron County
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- Chlamydia cases: 551.3 per 100K people (112 cases)
- Gonorrhea cases: 93.5 per 100K people (19 cases)
- Syphilis cases (non-congenital): 9.8 per 100K people (2 cases)
--- Primary and secondary syphilis: 4.9 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 4.9 per 100K people (1 case)
#33. Willacy County
xradiophotog // Shutterstock
- Chlamydia cases: 555.6 per 100K people (241 case)
- Gonorrhea cases: 103.7 per 100K people (45 cases)
- Syphilis cases (non-congenital): 9.2 per 100K people (4 cases)
--- Primary and secondary syphilis: 4.6 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 4.6 per 100K people (2 cases)
#32. Erath County
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- Chlamydia cases: 555.6 per 100K people (84 cases)
- Gonorrhea cases: 211.7 per 100K people (32 cases)
- Syphilis cases (non-congenital): 13.2 per 100K people (2 cases)
--- Primary and secondary syphilis: 6.6 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 6.6 per 100K people (1 case)
#31. Pecos County
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- Chlamydia cases: 556.1 per 100K people (664 cases)
- Gonorrhea cases: 307.3 per 100K people (367 cases)
- Syphilis cases (non-congenital): 152.4 per 100K people (182 cases)
--- Primary and secondary syphilis: 39.4 per 100K people (47 cases)
--- Nonprimary and nonsecondary early syphilis: 113.1 per 100K people (135 cases)
#30. Tom Green County
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- Chlamydia cases: 569.1 per 100K people (176 cases)
- Gonorrhea cases: 207.0 per 100K people (64 cases)
- Syphilis cases (non-congenital): 64.7 per 100K people (20 cases)
--- Primary and secondary syphilis: 19.4 per 100K people (6 cases)
--- Nonprimary and nonsecondary early syphilis: 45.3 per 100K people (14 cases)
#29. Bee County
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- Chlamydia cases: 583.8 per 100K people (99 cases)
- Gonorrhea cases: 206.4 per 100K people (35 cases)
- Syphilis cases (non-congenital): 5.9 per 100K people (1 case)
--- Primary and secondary syphilis: 5.9 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#28. Robertson County
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- Chlamydia cases: 586.2 per 100K people (41 case)
- Gonorrhea cases: 71.5 per 100K people (5 cases)
- Syphilis cases (non-congenital): 42.9 per 100K people (3 cases)
--- Primary and secondary syphilis: 28.6 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 14.3 per 100K people (1 case)
#27. Brooks County
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- Chlamydia cases: 586.4 per 100K people (145 cases)
- Gonorrhea cases: 157.7 per 100K people (39 cases)
- Syphilis cases (non-congenital): 32.4 per 100K people (8 cases)
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 32.4 per 100K people (8 cases)
#26. Uvalde County
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- Chlamydia cases: 588.2 per 100K people (2 cases)
- Gonorrhea cases: 0 cases
- Syphilis cases (non-congenital): 0 cases
--- Primary and secondary syphilis: 0 cases
--- Nonprimary and nonsecondary early syphilis: 0 cases
#25. Kenedy County
Jacob Boomsma // Shutterstock
- Chlamydia cases: 591.2 per 100K people (1,500 cases)
- Gonorrhea cases: 298.8 per 100K people (758 cases)
- Syphilis cases (non-congenital): 38.6 per 100K people (98 cases)
--- Primary and secondary syphilis: 18.9 per 100K people (48 cases)
--- Nonprimary and nonsecondary early syphilis: 19.7 per 100K people (50 cases)
#24. Jefferson County
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- Chlamydia cases: 593.8 per 100K people (463 cases)
- Gonorrhea cases: 229.6 per 100K people (179 cases)
- Syphilis cases (non-congenital): 28.2 per 100K people (22 cases)
--- Primary and secondary syphilis: 5.1 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 23.1 per 100K people (18 cases)
#23. Walker County
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- Chlamydia cases: 596.0 per 100K people (87 cases)
- Gonorrhea cases: 328.8 per 100K people (48 cases)
- Syphilis cases (non-congenital): 48.0 per 100K people (7 cases)
--- Primary and secondary syphilis: 13.7 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 34.3 per 100K people (5 cases)
#22. Nolan County
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- Chlamydia cases: 596.6 per 100K people (961 case)
- Gonorrhea cases: 227.8 per 100K people (367 cases)
- Syphilis cases (non-congenital): 50.3 per 100K people (81 case)
--- Primary and secondary syphilis: 16.1 per 100K people (26 cases)
--- Nonprimary and nonsecondary early syphilis: 34.1 per 100K people (55 cases)
#21. Ector County
Roberto Galan // Shutterstock
- Chlamydia cases: 615.7 per 100K people (570 cases)
- Gonorrhea cases: 350.0 per 100K people (324 cases)
- Syphilis cases (non-congenital): 55.1 per 100K people (51 case)
--- Primary and secondary syphilis: 22.7 per 100K people (21 case)
--- Nonprimary and nonsecondary early syphilis: 32.4 per 100K people (30 cases)
#20. Bowie County
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- Chlamydia cases: 620.2 per 100K people (29,321 case)
- Gonorrhea cases: 274.4 per 100K people (12,976 cases)
- Syphilis cases (non-congenital): 58.5 per 100K people (2,765 cases)
--- Primary and secondary syphilis: 17.8 per 100K people (841 case)
--- Nonprimary and nonsecondary early syphilis: 40.7 per 100K people (1,924 cases)
#19. Harris County
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- Chlamydia cases: 633.2 per 100K people (1,666 cases)
- Gonorrhea cases: 333.7 per 100K people (878 cases)
- Syphilis cases (non-congenital): 39.1 per 100K people (103 cases)
--- Primary and secondary syphilis: 12.9 per 100K people (34 cases)
--- Nonprimary and nonsecondary early syphilis: 26.2 per 100K people (69 cases)
#18. Mclennan County
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- Chlamydia cases: 656.0 per 100K people (64 cases)
- Gonorrhea cases: 102.5 per 100K people (10 cases)
- Syphilis cases (non-congenital): 20.5 per 100K people (2 cases)
--- Primary and secondary syphilis: 20.5 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#17. Duval County
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- Chlamydia cases: 656.5 per 100K people (1,556 cases)
- Gonorrhea cases: 222.8 per 100K people (528 cases)
- Syphilis cases (non-congenital): 19.0 per 100K people (45 cases)
--- Primary and secondary syphilis: 9.3 per 100K people (22 cases)
--- Nonprimary and nonsecondary early syphilis: 9.7 per 100K people (23 cases)
#16. Brazos County
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- Chlamydia cases: 662.5 per 100K people (8,646 cases)
- Gonorrhea cases: 332.0 per 100K people (4,333 cases)
- Syphilis cases (non-congenital): 63.8 per 100K people (833 cases)
--- Primary and secondary syphilis: 32.0 per 100K people (417 cases)
--- Nonprimary and nonsecondary early syphilis: 31.9 per 100K people (416 cases)
#15. Travis County
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- Chlamydia cases: 668.0 per 100K people (432 cases)
- Gonorrhea cases: 278.3 per 100K people (180 cases)
- Syphilis cases (non-congenital): 15.5 per 100K people (10 cases)
--- Primary and secondary syphilis: 6.2 per 100K people (4 cases)
--- Nonprimary and nonsecondary early syphilis: 9.3 per 100K people (6 cases)
#14. Nacogdoches County
Gestalt Imagery // Shutterstock
- Chlamydia cases: 690.6 per 100K people (5 cases)
- Gonorrhea cases: 138.1 per 100K people (1 case)
- Syphilis cases (non-congenital): 138.1 per 100K people (1 case)
--- Primary and secondary syphilis: 138.1 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#13. Terrell County
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- Chlamydia cases: 692.2 per 100K people (14,039 cases)
- Gonorrhea cases: 332.5 per 100K people (6,743 cases)
- Syphilis cases (non-congenital): 58.3 per 100K people (1,182 cases)
--- Primary and secondary syphilis: 23.1 per 100K people (469 cases)
--- Nonprimary and nonsecondary early syphilis: 35.2 per 100K people (713 cases)
#12. Bexar County
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- Chlamydia cases: 707.0 per 100K people (23 cases)
- Gonorrhea cases: 276.7 per 100K people (9 cases)
- Syphilis cases (non-congenital): 61.5 per 100K people (2 cases)
--- Primary and secondary syphilis: 61.5 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#11. Reagan County
Roberto Galan // Shutterstock
- Chlamydia cases: 726.2 per 100K people (902 cases)
- Gonorrhea cases: 274.6 per 100K people (341 case)
- Syphilis cases (non-congenital): 36.2 per 100K people (45 cases)
--- Primary and secondary syphilis: 20.1 per 100K people (25 cases)
--- Nonprimary and nonsecondary early syphilis: 16.1 per 100K people (20 cases)
#10. Gregg County
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- Chlamydia cases: 745.2 per 100K people (2,631 case)
- Gonorrhea cases: 286.3 per 100K people (1,011 case)
- Syphilis cases (non-congenital): 55.8 per 100K people (197 cases)
--- Primary and secondary syphilis: 25.8 per 100K people (91 case)
--- Nonprimary and nonsecondary early syphilis: 30.0 per 100K people (106 cases)
#9. Nueces County
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- Chlamydia cases: 780.1 per 100K people (2,453 cases)
- Gonorrhea cases: 375.3 per 100K people (1,180 cases)
- Syphilis cases (non-congenital): 135.8 per 100K people (427 cases)
--- Primary and secondary syphilis: 79.5 per 100K people (250 cases)
--- Nonprimary and nonsecondary early syphilis: 56.3 per 100K people (177 cases)
#8. Lubbock County
Tricia Daniel // Shutterstock
- Chlamydia cases: 810.6 per 100K people (3,077 cases)
- Gonorrhea cases: 374.9 per 100K people (1,423 cases)
- Syphilis cases (non-congenital): 15.3 per 100K people (58 cases)
--- Primary and secondary syphilis: 6.1 per 100K people (23 cases)
--- Nonprimary and nonsecondary early syphilis: 9.2 per 100K people (35 cases)
#7. Bell County
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- Chlamydia cases: 838.5 per 100K people (21,684 cases)
- Gonorrhea cases: 419.8 per 100K people (10,855 cases)
- Syphilis cases (non-congenital): 63.9 per 100K people (1,652 cases)
--- Primary and secondary syphilis: 9.6 per 100K people (247 cases)
--- Nonprimary and nonsecondary early syphilis: 54.3 per 100K people (1,405 cases)
#6. Dallas County
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- Chlamydia cases: 881.3 per 100K people (270 cases)
- Gonorrhea cases: 169.7 per 100K people (52 cases)
- Syphilis cases (non-congenital): 29.4 per 100K people (9 cases)
--- Primary and secondary syphilis: 3.3 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 26.1 per 100K people (8 cases)
#5. Kleberg County
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- Chlamydia cases: 916.7 per 100K people (169 cases)
- Gonorrhea cases: 282.1 per 100K people (52 cases)
- Syphilis cases (non-congenital): 54.2 per 100K people (10 cases)
--- Primary and secondary syphilis: 10.8 per 100K people (2 cases)
--- Nonprimary and nonsecondary early syphilis: 43.4 per 100K people (8 cases)
#4. Frio County
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- Chlamydia cases: 1,028.5 per 100K people (149 cases)
- Gonorrhea cases: 89.7 per 100K people (13 cases)
- Syphilis cases (non-congenital): 6.9 per 100K people (1 case)
--- Primary and secondary syphilis: 6.9 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 0 cases
#3. Reeves County
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- Chlamydia cases: 1,227.0 per 100K people (1,430 cases)
- Gonorrhea cases: 550.0 per 100K people (641 case)
- Syphilis cases (non-congenital): 121.8 per 100K people (142 cases)
--- Primary and secondary syphilis: 26.6 per 100K people (31 case)
--- Nonprimary and nonsecondary early syphilis: 95.2 per 100K people (111 case)
#2. Potter County
Edward H. Campbell // Shutterstock
- Chlamydia cases: 2,041.8 per 100K people (173 cases)
- Gonorrhea cases: 177.0 per 100K people (15 cases)
- Syphilis cases (non-congenital): 23.6 per 100K people (2 cases)
--- Primary and secondary syphilis: 11.8 per 100K people (1 case)
--- Nonprimary and nonsecondary early syphilis: 11.8 per 100K people (1 case)

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

#1. Dimmit County
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