STD Rates in Lassen County, California

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 28,853
Combined
145.6
per 100K
55th / 58
Chlamydia
131.7
per 100K • 38 cases
Gonorrhea
13.9
per 100K • 4 cases
Syphilis P&S
0.0
No cases reported

Lassen County is among the lower-burden counties in California, reporting a combined STD rate of 145.6 per 100,000 residents in 2023 — 55th of 58 counties. Reported infections included chlamydia at 131.7 per 100,000 (38 cases, 73% below the state rate), gonorrhea at 13.9 per 100,000 (4 cases, 93% below the state rate). No syphilis cases were reported in Lassen County in 2023. Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Lassen County.

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Lassen County County vs California Average

Infection Lassen County County California Rate Difference
Chlamydia 131.7 491.1 73% below
Gonorrhea 13.9 190.2 93% below

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Other Counties in California

STD Testing Locations in Lassen County, California

FAQs

Lassen County ranks 55th of 58 California counties for combined STD rate in 2023, at 145.6 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Lassen County, with 38 cases at a rate of 131.7 per 100,000 residents.
STDTest.com lists confidential testing locations across Lassen County and California. Many offer same-day appointments with results in 1u20133 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