Data Year: 2023Source: CDC STI SurveillancePopulation: 25,704
Combined
1548.4
per 100K
5th / 46
Chlamydia
1015.4
per 100K • 261 cases
Gonorrhea
529.1
per 100K • 136 cases
Syphilis P&S
3.9
per 100K • 1 cases
Marlboro County has one of the higher STD burdens in South Carolina, with a combined rate of 1,548.4 per 100,000 residents in 2023 — ranking 5th of 46 counties. Reported infections included chlamydia at 1015.4 per 100,000 (261 cases, 66% above the state rate), gonorrhea at 529.1 per 100,000 (136 cases, 138% above the state rate), syphilis at 3.9 per 100,000 (1 case, 77% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Marlboro County has confidential testing locations available.
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Data sourced from the CDC's annual STI Surveillance Report. Rates are per 100,000 population and reflect reported cases only — actual prevalence is likely higher due to undiagnosed infections. While we strive for accuracy, STDTest.com makes no representations or warranties regarding the completeness or accuracy of this data and is not responsible for any errors or omissions. This page is for informational purposes only and does not constitute medical advice.