STD Rates in Gregory County, South Dakota

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

Data Year: 2023 Source: CDC STI Surveillance Population: 4,018
Combined
323.6
per 100K
34th / 64
Chlamydia
224
per 100K • 9 cases
Based on 9 cases — interpret with care
US rate: 490.7
Gonorrhea
74.7
per 100K • 3 cases
Based on 3 cases — interpret with care
US rate: 178.2
Syphilis P&S
24.9
per 100K • 1 cases
Based on 1 case — interpret with care
US rate: 15.8

Gregory County recorded a combined STD rate of 323.6 per 100,000 residents in 2023, ranking 34th of 64 counties in South Dakota. Reported infections included chlamydia at 224.0 per 100,000 (9 cases, too few for a reliable comparison), gonorrhea at 74.7 per 100,000 (3 cases, too few for a reliable comparison), syphilis at 24.9 per 100,000 (1 case, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Gregory County.

STD Trends in Gregory County, 2000–2023

Reported cases per 100,000 residents each year, against the South Dakota rate (dashed). In a county this size a handful of cases moves the rate a long way, so read the shape rather than any single year.

Chlamydia
224.0
per 100K in 2023
105.4 in 2000
Peak 325.5 in 2020
Gonorrhea
74.7
per 100K in 2023
21.1 in 2000
Peak 100.2 in 2020
Syphilis (P&S)
24.9
per 100K in 2023
0.0 in 2000
Peak 24.9 in 2023

Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.

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Gregory County vs South Dakota and the US

Infection Gregory County South Dakota US vs South Dakota vs US Rank in South Dakota
Chlamydia 2249 cases 531.6 490.7 Too few cases Too few cases –
Gonorrhea 74.73 cases 253.3 178.2 Too few cases Too few cases –
Syphilis (P&S) 24.91 case 73.4 15.8 Too few cases Too few cases –

Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among South Dakota’s counties. The US rate is all 50 states combined. Comparisons are left out where fewer than 20 cases were reported, because a rate built on so few cases can swing widely from one year to the next.

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FAQs

Gregory County ranks 34th of 64 South Dakota counties for combined STD rate in 2023, at 323.6 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Gregory County, with 9 cases at a rate of 224.0 per 100,000 residents.
STDTest.com lists confidential testing locations across Gregory County and South Dakota. Many offer same-day appointments with results in 1–3 days.
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.