STD Rates in Cass County, North Dakota

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 196,376
Combined
712.4
per 100K
8th / 51
Chlamydia
540.8
per 100K • 1,062 cases
Gonorrhea
165.5
per 100K • 325 cases
Syphilis P&S
6.1
per 100K • 12 cases

Cass County has one of the higher STD burdens in North Dakota, with a combined rate of 712.4 per 100,000 residents in 2023 — ranking 8th of 51 counties. Reported infections included chlamydia at 540.8 per 100,000 (1,062 cases, 24% above the state rate), gonorrhea at 165.5 per 100,000 (325 cases, 12% above the state rate), syphilis at 6.1 per 100,000 (12 cases, 51% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Cass County has confidential testing locations available.

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Cass County vs North Dakota Average

Infection Cass County North Dakota Rate Difference
Chlamydia 540.8 436.4 24% above
Gonorrhea 165.5 147.2 12% above
Syphilis (P&S) 6.1 12.4 51% below

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Largest cities in Cass County, North Dakota

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

STD testing in Fargo, ND131,627 people → STD testing in West Fargo, ND40,094 people →

Largest Counties in North Dakota

Burleigh County → Grand Forks County → Ward County → Williams County → Morton County → Stark County → Stutsman County → Richland County → Mckenzie County → Rolette County →

All 51 North Dakota counties → STD testing in North Dakota →

FAQs

Cass County ranks 8th of 51 North Dakota counties for combined STD rate in 2023, at 712.4 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Cass County, with 1,062 cases at a rate of 540.8 per 100,000 residents.
STDTest.com lists confidential testing locations across Cass County and North Dakota. 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