STD Rates in Charleston County, South Carolina
2023 CDC surveillance data for Charleston County, South Carolina — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Charleston County recorded a combined STD rate of 789.0 per 100,000 residents in 2023, ranking 26th of 46 counties in South Carolina. Reported infections included chlamydia at 577.3 per 100,000 (2,450 cases, 6% below the state rate), gonorrhea at 192.8 per 100,000 (818 cases, 13% below the state rate), syphilis at 18.9 per 100,000 (80 cases, 9% above the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Charleston County has confidential testing locations available.
STD Trends in Charleston 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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Charleston County vs South Carolina and the US
| Infection | Charleston County | South Carolina | US | vs South Carolina | vs US | Rank in South Carolina |
|---|---|---|---|---|---|---|
| Chlamydia | 577.32,450 cases | 612.1 | 490.7 | 5.7% below | 17.6% above | 26th of 46 |
| Gonorrhea | 192.8818 cases | 222.4 | 178.2 | 13.3% below | 8.2% above | 28th of 46 |
| Syphilis (P&S) | 18.980 cases | 17.3 | 15.8 | 9.2% above | 19.6% above | 21st 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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