Which State Has the Highest STD Rates

We published a new blog post with updated information on STD rates in US states for 2018.

Sexually transmitted diseases are dangerous and they are everywhere. In places where people are most careless about their sexual health, STDs can spread rapidly.

According to estimates, treating STDs in the US costs the country $16 billion every year. At this point, there are approximately 30 million infections being transmitted yearly, half of them in people aged 15 to 24.

Everyone is at risk of developing STDs, but young people tend to engage in more high-risk sexual behavior. Becuase STDs are still a taboo topic in most places, many people are not educated properly and do not know the importance of taking care of their sexual health.

States with Highest STD Rates

To help you get an idea of pervasiveness of sexually transmitted disease, here are statistics for the most common STDs in the United States: chlamydia, gonorrhea, and syphilis.



Chlamydia Rate: 523.6 per 100,000 people

Gonorrhea Rate: 147.13 per 100,000 people

Syphilis Rate: 6.2 per 100,000 people

In Texas, the stigma of STDs is extremely high, which led to more than 11,000 new chlamydia cases in a single county! (Find STD testing centers in Texas)


#10 Illinois

Chlamydia Rate: 540.4 per 100,000 people

Gonorrhea Rate: 133 per 100,000 people

Syphilis Rate: 8.4 per 100,000 people

Illinois has been on this list since forever, being one of the states that constantly has the highest STD rates in the past decade. Because of this, the National STD Awareness Month and other official awareness programs were launched in the state, but that has changed things much yet. (Find STD testing centers in Illinois )


#9 Alabama

Chlamydia Rate: 543.6 per 100,000 people

Gonorrhea Rate: 148.4 per 100,000 people

Syphilis Rate: 5.8 per 100,000 people

Alabama needs to do some serious improvements in terms of sex education to protect more people from being infected. They have put up billboards and implemented some education programs, but this hasn’t really done a lot to decrease the high rates. The state continues to be one of the highest ranked STD infected states in the US. (Find STD testing centers in Alabama )


#8 Oklahoma

Chlamydia Rate: 542.2 per 100,000 people

Gonorrhea Rate: 168.7 per 100,000 people

Syphilis Rate: 5.4 per 100,000 people

Number eight is Oklahoma. Unfortunately, the numbers of syphilis-infected patients have increased even more since 2013, with a percentage of 77% being reported solely in the period from 2013 to 2015! (Find STD testing centers in Oklahoma)


#7 New York

Chlamydia Rate: 524.7 per 100,000 people

Gonorrhea Rate: 129.4 per 100,000 people

Syphilis Rate: 10.2 per 100,000 people

New Yorkers keep having unprotected sex. The increase in gonorrhea and syphilis infections is startling in the past decade, being most prevalent among minorities, gay men, and young New Yorkers.

Maybe the nightlife in New York is not as perfect as it sounds? At least not for those who do not practice safe sex.


#6 California

Chlamydia Rate: 487.5 per 100,000 people

Gonorrhea Rate: 139.5 per 100,000 people

Syphilis Rate: 12.6 per 100,000 people

Back in 2015, California counted a quarter of a million cases of sexually transmitted diseases, which was a huge jump when compared to previous years. The main reason for this unbelievable increase in STDs is less condom use across the state. (Find STD testing centers in California)


#5 South Carolina

Chlamydia Rate: 569.9 per 100,000 people

Gonorrhea Rate: 169.8 per 100,000 people

Syphilis Rate: 6.1 per 100,000 people

Unlike many of the states in our list, South Carolina actually took big steps to fight the issue. At this point, the state has new laws that help them fight off STDs by prosecuting people who intentionally expose others to a disease. (Find STD testing centers in South Carolina)


#4 Mississippi

Chlamydia Rate: 580.2 per 100,000 people

Gonorrhea Rate: 192.9 per 100,000 people

Syphilis Rate: 7.3 per 100,000 people

Being this high on the list, we’d recommend that you take condoms with you every time you visit this state. The risk of being infected is very high here, especially for gay men and young people. (Find STD testing centers in Mississippi)


#3 Georgia

Chlamydia Rate: 570.8 per 100,000 people

Gonorrhea Rate: 158.3 per 100,000 people

Syphilis Rate: 14 per 100,000 people

Georgia is certainly not proud of the number of STD infections it has. A report lists five Georgia cites in the top 60 most sexually diseased cities. This points out to a concerning lack of awareness, but researchers say that the biggest culprit behind this increasing rate is actually poverty. (Find STD testing centers in Georgia)


#2 North Carolina

Chlamydia Rate: 647.4 per 100,000 people

Gonorrhea Rate: 199.2 per 100,000 people

Syphilis Rate: 12 per 100,000 people

And how could it not? Fayetteville, a city in North Carolina also made it in the list of the top 10 cities with the most STD infections in the country. (Find STD testing centers in North Carolina)


#1 Louisiana

Chlamydia Rate: 695.2 per 100,000 people

Gonorrhea Rate: 221.1 per 100,000 people

Syphilis Rate: 15 per 100,000 people

And finally, what you’ve been waiting for: the state with most STD cases in the US! Make sure you pack plenty of condoms for Mardi Gras. (Find STD testing centers in Louisiana)


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