STD Rates in Richland County, South Carolina

2023 CDC surveillance data for Richland County, South Carolina — chlamydia, gonorrhea, and syphilis rates with state comparisons.

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Data Year: 2023 Source: CDC STI Surveillance Population: 425,153
Combined
1390.4
per 100K
9th / 46
Chlamydia
961.3
per 100K • 4,087 cases
Gonorrhea
403.9
per 100K • 1,717 cases
Syphilis P&S
25.2
per 100K • 107 cases

Richland County has one of the higher STD burdens in South Carolina, with a combined rate of 1,390.4 per 100,000 residents in 2023 — ranking 9th of 46 counties. Reported infections included chlamydia at 961.3 per 100,000 (4,087 cases, 57% above the state rate), gonorrhea at 403.9 per 100,000 (1,717 cases, 82% above the state rate), syphilis at 25.2 per 100,000 (107 cases, 46% above the state rate). Confidential STD testing is available throughout Richland County — knowing your status is the only way to catch infections that often show no symptoms.

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Richland County vs South Carolina Average

Infection Richland County South Carolina Rate Difference
Chlamydia 961.3 612.1 57% above
Gonorrhea 403.9 222.4 82% above
Syphilis (P&S) 25.2 17.3 46% above

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Largest cities in Richland County, South Carolina

Largest first, by Census population. Each city page lists nearby clinics, free and low-cost testing, and labs.

STD testing in Columbia, SC139,643 people → STD testing in St Andrews, SC19,868 people → STD testing in Dentsville, SC15,209 people → STD testing in Irmo, SC11,813 people → STD testing in Forest Acres, SC10,530 people → STD testing in Woodfield, SC9,465 people → STD testing in Eastover, SC485 people → STD testing in Horrell Hill, SC → STD testing in Pontiac, SC →

Largest Counties in South Carolina

Greenville County → Charleston County → Horry County → Spartanburg County → Lexington County → York County → Berkeley County → Anderson County → Beaufort County → Aiken County →

All 46 South Carolina counties → STD testing in South Carolina →

FAQs

Richland County ranks 9th of 46 South Carolina counties for combined STD rate in 2023, at 1,390.4 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Richland County, with 4,087 cases at a rate of 961.3 per 100,000 residents.
STDTest.com lists confidential testing locations across Richland County and South Carolina. Many offer same-day appointments with results in 1–3 days.

Related Resources

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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.
Sources