STD Rates in Randolph County, Illinois

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 29,816
Combined
422.6
per 100K
34th / 102
Chlamydia
298.5
per 100K • 89 cases
Gonorrhea
107.3
per 100K • 32 cases
Syphilis P&S
16.8
per 100K • 5 cases

Randolph County reported a combined STD rate of 422.6 per 100,000 residents in 2023, placing it 34th of 102 Illinois counties — in the upper half of the state. Reported infections included chlamydia at 298.5 per 100,000 (89 cases, 46% below the state rate), gonorrhea at 107.3 per 100,000 (32 cases, 47% below the state rate), syphilis at 16.8 per 100,000 (5 cases, 45% above the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Randolph County.

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Randolph County vs Illinois Average

Infection Randolph County Illinois Rate Difference
Chlamydia 298.5 557.7 46% below
Gonorrhea 107.3 202.3 47% below
Syphilis (P&S) 16.8 11.6 45% above

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STD testing in Randolph County, Illinois

Clinics, free and low-cost testing, and labs near Chester.

STD testing in Chester, IL6,797 people →

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 →

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FAQs

Randolph County ranks 34th of 102 Illinois counties for combined STD rate in 2023, at 422.6 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Randolph County, with 89 cases at a rate of 298.5 per 100,000 residents.
STDTest.com lists confidential testing locations across Randolph 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