STD Rates in Madison County, Indiana

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 132,514
Combined
713.2
per 100K
8th / 92
Chlamydia
520.7
per 100K • 690 cases
Gonorrhea
169.1
per 100K • 224 cases
Syphilis P&S
23.4
per 100K • 31 cases

Madison County has one of the higher STD burdens in Indiana, with a combined rate of 713.2 per 100,000 residents in 2023 — ranking 8th of 92 counties. Reported infections included chlamydia at 520.7 per 100,000 (690 cases, 6% above the state rate), gonorrhea at 169.1 per 100,000 (224 cases, 17% above the state rate), syphilis at 23.4 per 100,000 (31 cases, 169% above the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Madison County has confidential testing locations available.

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Madison County vs Indiana Average

Infection Madison County Indiana Rate Difference
Chlamydia 520.7 491 6% above
Gonorrhea 169.1 144 17% above
Syphilis (P&S) 23.4 8.7 169% above

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Largest cities in Madison County, Indiana

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

STD testing in Anderson, IN55,367 people → STD testing in Elwood, IN8,356 people →

Largest Counties in Indiana

Marion County → Lake County → Allen County → Hamilton County → St. Joseph County → Elkhart County → Tippecanoe County → Hendricks County → Vanderburgh County → Porter County →

All 92 Indiana counties → STD testing in Indiana →

FAQs

Madison County ranks 8th of 92 Indiana counties for combined STD rate in 2023, at 713.2 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Madison County, with 690 cases at a rate of 520.7 per 100,000 residents.
STDTest.com lists confidential testing locations across Madison County and Indiana. 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