STD Rates in Mclean County, Illinois
2023 CDC surveillance data for Mclean County, Illinois — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Mclean County has one of the higher STD burdens in Illinois, with a combined rate of 749.8 per 100,000 residents in 2023 — ranking 13th of 102 counties. Reported infections included chlamydia at 535.1 per 100,000 (912 cases, 4% below the state rate), gonorrhea at 211.8 per 100,000 (361 cases, 5% above the state rate), syphilis at 2.9 per 100,000 (5 cases, 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 Mclean County.
STD Trends in Mclean 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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Mclean County vs Illinois and the US
| Infection | Mclean County | Illinois | US | vs Illinois | vs US | Rank in Illinois |
|---|---|---|---|---|---|---|
| Chlamydia | 535.1912 cases | 557.7 | 490.7 | 4.1% below | 9% above | 14th of 102 |
| Gonorrhea | 211.8361 cases | 202.3 | 178.2 | 4.7% above | 18.9% above | 12th of 102 |
| Syphilis (P&S) | 2.95 cases | 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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