STD Rates in Richland County, South Carolina
2023 CDC surveillance data for Richland County, South Carolina — chlamydia, gonorrhea, and syphilis rates with state comparisons.
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.
STD Trends in Richland County, 2000–2023
Reported cases per 100,000 residents each year, against the South Carolina rate (dashed). In a county this size a handful of cases moves the rate a long way, so read the shape rather than any single year.
Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.
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Richland County vs South Carolina and the US
| Infection | Richland County | South Carolina | US | vs South Carolina | vs US | Rank in South Carolina |
|---|---|---|---|---|---|---|
| Chlamydia | 961.34,087 cases | 612.1 | 490.7 | 57% above | 95.9% above | 9th of 46 |
| Gonorrhea | 403.91,717 cases | 222.4 | 178.2 | 81.6% above | 126.7% above | 7th of 46 |
| Syphilis (P&S) | 25.2107 cases | 17.3 | 15.8 | 45.7% above | 59.5% above | 13th of 46 |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among South Carolina’s counties. The US rate is all 50 states combined. Comparisons are left out where fewer than 20 cases were reported, because a rate built on so few cases can swing widely from one year to the next.
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