STD Rates in Logan County, Illinois
2023 CDC surveillance data for Logan County, Illinois — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Logan County has one of the higher STD burdens in Illinois, with a combined rate of 648.8 per 100,000 residents in 2023 — ranking 16th of 102 counties. Reported infections included chlamydia at 482.1 per 100,000 (133 cases, 14% below the state rate), gonorrhea at 163.1 per 100,000 (45 cases, 19% below the state rate), syphilis at 3.6 per 100,000 (1 case, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Logan County.
STD Trends in Logan County, 2000–2023
Reported cases per 100,000 residents each year, against the Illinois 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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Logan County vs Illinois and the US
| Infection | Logan County | Illinois | US | vs Illinois | vs US | Rank in Illinois |
|---|---|---|---|---|---|---|
| Chlamydia | 482.1133 cases | 557.7 | 490.7 | 13.6% below | 1.8% below | 18th of 102 |
| Gonorrhea | 163.145 cases | 202.3 | 178.2 | 19.4% below | 8.5% below | 18th of 102 |
| Syphilis (P&S) | 3.61 case | 11.6 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Illinois’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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