STD Rates in Barnwell County, South Carolina
2023 CDC surveillance data for Barnwell County, South Carolina — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Barnwell County reported a combined STD rate of 1,144.5 per 100,000 residents in 2023, placing it 14th of 46 South Carolina counties — in the upper half of the state. Reported infections included chlamydia at 836.3 per 100,000 (171 cases, 37% above the state rate), gonorrhea at 288.6 per 100,000 (59 cases, 30% above the state rate), syphilis at 19.6 per 100,000 (4 cases, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Barnwell County has confidential testing locations available.
STD Trends in Barnwell 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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Barnwell County vs South Carolina and the US
| Infection | Barnwell County | South Carolina | US | vs South Carolina | vs US | Rank in South Carolina |
|---|---|---|---|---|---|---|
| Chlamydia | 836.3171 cases | 612.1 | 490.7 | 36.6% above | 70.4% above | 14th of 46 |
| Gonorrhea | 288.659 cases | 222.4 | 178.2 | 29.8% above | 62% above | 13th of 46 |
| Syphilis (P&S) | 19.64 cases | 17.3 | 15.8 | Too few cases | Too few cases | – |
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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