10. Alabama
Chlamydia: 543,6
Gonorrhea: 148,4
Primary and secondary syphilis: 5,8
Although Alabama is at the bottom of our list of most sexually diseased states you might want to avoid, rates of sexually transmitted diseases should not be ignored. Alabama is ranked 9th among 50 states in chlamydial and gonorrheal infections. It is ranked 19th when it comes to rates of primary and secondary syphilis and 22nd in the number of HIV diagnosis (481 persons in 2015).