STD Rates in Coles County, Illinois
2023 CDC surveillance data for Coles County, Illinois — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Coles County has one of the higher STD burdens in Illinois, with a combined rate of 875.0 per 100,000 residents in 2023 — ranking 11th of 102 counties. Reported infections included chlamydia at 629.6 per 100,000 (290 cases, 13% above the state rate), gonorrhea at 243.2 per 100,000 (112 cases, 20% above the state rate), syphilis at 2.2 per 100,000 (1 case, too few for a reliable comparison). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Coles County has confidential testing locations available.
STD Trends in Coles 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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Coles County vs Illinois and the US
| Infection | Coles County | Illinois | US | vs Illinois | vs US | Rank in Illinois |
|---|---|---|---|---|---|---|
| Chlamydia | 629.6290 cases | 557.7 | 490.7 | 12.9% above | 28.3% above | 11th of 102 |
| Gonorrhea | 243.2112 cases | 202.3 | 178.2 | 20.2% above | 36.5% above | 10th of 102 |
| Syphilis (P&S) | 2.21 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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