STD Rates in Saline County, Illinois

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 22,871
Combined
463.4
per 100K
26th / 102
Chlamydia
332.3
per 100K • 76 cases
Gonorrhea
118
per 100K • 27 cases
Syphilis P&S
13.1
per 100K • 3 cases

Saline County reported a combined STD rate of 463.4 per 100,000 residents in 2023, placing it 26th of 102 Illinois counties — in the upper half of the state. Reported infections included chlamydia at 332.3 per 100,000 (76 cases, 40% below the state rate), gonorrhea at 118.0 per 100,000 (27 cases, 42% below the state rate), syphilis at 13.1 per 100,000 (3 cases, 13% above the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Saline County has confidential testing locations available.

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Saline County vs Illinois Average

Infection Saline County Illinois Rate Difference
Chlamydia 332.3 557.7 40% below
Gonorrhea 118 202.3 42% below
Syphilis (P&S) 13.1 11.6 13% above

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Largest cities in Saline County, Illinois

Largest first, by Census population. Each city page lists nearby clinics, free and low-cost testing, and labs.

STD testing in Harrisburg, IL8,372 people → STD testing in Eldorado, IL3,771 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 →

All 102 Illinois counties → STD testing in Illinois →

FAQs

Saline County ranks 26th of 102 Illinois counties for combined STD rate in 2023, at 463.4 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Saline County, with 76 cases at a rate of 332.3 per 100,000 residents.
STDTest.com lists confidential testing locations across Saline County and Illinois. Many offer same-day appointments with results in 1–3 days.

Related Resources

STD Testing Window Periods How Soon After Sex to Test STD Symptoms Guide Testing Timeline Chart All Testing Clinics STD Statistics and Data
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