STD Rates in Johnson County, Wyoming

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 8,761
Combined
171.2
per 100K
15th / 22
Chlamydia
159.8
per 100K • 14 cases
Gonorrhea
11.4
per 100K • 1 cases
Syphilis P&S
0.0
No cases reported

Johnson County recorded a combined STD rate of 171.2 per 100,000 residents in 2023, ranking 15th of 22 counties in Wyoming. Reported infections included chlamydia at 159.8 per 100,000 (14 cases, 49% below the state rate), gonorrhea at 11.4 per 100,000 (1 case, 73% below the state rate). No syphilis cases were reported in Johnson County in 2023. Confidential STD testing is available throughout Johnson County — knowing your status is the only way to catch infections that often show no symptoms.

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Johnson County vs Wyoming Average

Infection Johnson County Wyoming Rate Difference
Chlamydia 159.8 313.2 49% below
Gonorrhea 11.4 42.3 73% below

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Largest cities in Johnson County, Wyoming

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

STD testing in Buffalo, WY4,572 people → STD testing in Kaycee, WY280 people →

Largest Counties in Wyoming

Laramie County → Natrona County → Campbell County → Sweetwater County → Fremont County → Albany County → Sheridan County → Park County → Teton County → Lincoln County →

All 22 Wyoming counties → STD testing in Wyoming →

FAQs

Johnson County ranks 15th of 22 Wyoming counties for combined STD rate in 2023, at 171.2 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Johnson County, with 14 cases at a rate of 159.8 per 100,000 residents.
STDTest.com lists confidential testing locations across Johnson County and Wyoming. 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