STD Rates in Yankton County, South Dakota

2023 CDC surveillance data for Yankton County, South Dakota — chlamydia, gonorrhea, and syphilis rates with state comparisons.

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Data Year: 2023 Source: CDC STI Surveillance Population: 23,517
Combined
357.2
per 100K
32nd / 64
Chlamydia
293.4
per 100K • 69 cases
Gonorrhea
59.5
per 100K • 14 cases
Syphilis P&S
4.3
per 100K • 1 cases

Yankton County reported a combined STD rate of 357.2 per 100,000 residents in 2023, placing it 32nd of 64 South Dakota counties — in the upper half of the state. Reported infections included chlamydia at 293.4 per 100,000 (69 cases, 45% below the state rate), gonorrhea at 59.5 per 100,000 (14 cases, 77% below the state rate), syphilis at 4.3 per 100,000 (1 case, 94% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Yankton County has confidential testing locations available.

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Yankton County vs South Dakota Average

Infection Yankton County South Dakota Rate Difference
Chlamydia 293.4 531.6 45% below
Gonorrhea 59.5 253.3 77% below
Syphilis (P&S) 4.3 73.4 94% below

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STD testing in Yankton County, South Dakota

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

STD testing in Yankton, SD15,540 people →

Largest Counties in South Dakota

Minnehaha County → Pennington County → Lincoln County → Brown County → Brookings County → Meade County → Codington County → Lawrence County → Davison County → Beadle County →

All 64 South Dakota counties → STD testing in South Dakota →

FAQs

Yankton County ranks 32nd of 64 South Dakota counties for combined STD rate in 2023, at 357.2 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Yankton County, with 69 cases at a rate of 293.4 per 100,000 residents.
STDTest.com lists confidential testing locations across Yankton County and South Dakota. 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