STD Rates in Decatur County, Iowa

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 7,664
Combined
313.1
per 100K
40th / 99
Chlamydia
300.1
per 100K • 23 cases
Gonorrhea
13
per 100K • 1 cases
Syphilis P&S
0.0
No cases reported

Decatur County reported a combined STD rate of 313.1 per 100,000 residents in 2023, placing it 40th of 99 Iowa counties — in the upper half of the state. Reported infections included chlamydia at 300.1 per 100,000 (23 cases, 30% below the state rate), gonorrhea at 13.0 per 100,000 (1 case, 89% below the state rate). No syphilis cases were reported in Decatur County in 2023. Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Decatur County.

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Decatur County vs Iowa Average

Infection Decatur County Iowa Rate Difference
Chlamydia 300.1 426.8 30% below
Gonorrhea 13 116.8 89% below

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Largest Counties in Iowa

Polk County → Linn County → Scott County → Johnson County → Black Hawk County → Dallas County → Woodbury County → Dubuque County → Story County → Pottawattamie County →

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FAQs

Decatur County ranks 40th of 99 Iowa counties for combined STD rate in 2023, at 313.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Decatur County, with 23 cases at a rate of 300.1 per 100,000 residents.
STDTest.com lists confidential testing locations across Decatur County and Iowa. Many offer same-day appointments with results in 1–3 days.

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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