STD Rates in Santa Clara County, California

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 1,877,402
Combined
421.1
per 100K
31st / 58
Chlamydia
301.8
per 100K • 5,666 cases
Gonorrhea
110.9
per 100K • 2,083 cases
Syphilis P&S
8.4
per 100K • 157 cases

Santa Clara County recorded a combined STD rate of 421.1 per 100,000 residents in 2023, ranking 31st of 58 counties in California. Reported infections included chlamydia at 301.8 per 100,000 (5,666 cases, 39% below the state rate), gonorrhea at 110.9 per 100,000 (2,083 cases, 42% below the state rate), syphilis at 8.4 per 100,000 (157 cases, 48% below the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Santa Clara County.

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Santa Clara County County vs California Average

Infection Santa Clara County County California Rate Difference
Chlamydia 301.8 491.1 39% below
Gonorrhea 110.9 190.2 42% below
Syphilis (P&S) 8.4 16.3 48% below

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Other Counties in California

STD Testing Locations in Santa Clara County, California

FAQs

Santa Clara County ranks 31st of 58 California counties for combined STD rate in 2023, at 421.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Santa Clara County, with 5,666 cases at a rate of 301.8 per 100,000 residents.
STDTest.com lists confidential testing locations across Santa Clara County and California. Many offer same-day appointments with results in 1u20133 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