STD Rates in Scott County, Illinois

2023 CDC surveillance data for Scott County, Illinois — chlamydia, gonorrhea, and syphilis rates with state comparisons.

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Data Year: 2023 Source: CDC STI Surveillance Population: 4,710
Combined
360.9
per 100K
44th / 102
Chlamydia
276
per 100K • 13 cases
Gonorrhea
63.7
per 100K • 3 cases
Syphilis P&S
21.2
per 100K • 1 cases

Scott County reported a combined STD rate of 360.9 per 100,000 residents in 2023, placing it 44th of 102 Illinois counties — in the upper half of the state. Reported infections included chlamydia at 276.0 per 100,000 (13 cases, 51% below the state rate), gonorrhea at 63.7 per 100,000 (3 cases, 69% below the state rate), syphilis at 21.2 per 100,000 (1 case, 83% above the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Scott County has confidential testing locations available.

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Scott County vs Illinois Average

Infection Scott County Illinois Rate Difference
Chlamydia 276 557.7 51% below
Gonorrhea 63.7 202.3 69% below
Syphilis (P&S) 21.2 11.6 83% above

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Largest Counties in Illinois

Cook County → Dupage County → Lake County → Will County → Kane County → Mchenry County → Winnebago County → Madison County → St. Clair County → Champaign County →

All 102 Illinois counties → STD testing in Illinois →

FAQs

Scott County ranks 44th of 102 Illinois counties for combined STD rate in 2023, at 360.9 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Scott County, with 13 cases at a rate of 276.0 per 100,000 residents.
STDTest.com lists confidential testing locations across Scott County and Illinois. Many offer same-day appointments with results in 1–3 days.

Related Resources

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Data sourced from the CDC's annual STI Surveillance Report. Rates are per 100,000 population and reflect reported cases only — actual prevalence is likely higher due to undiagnosed infections. While we strive for accuracy, STDTest.com makes no representations or warranties regarding the completeness or accuracy of this data and is not responsible for any errors or omissions. This page is for informational purposes only and does not constitute medical advice.
Sources