STD Rates in Los Angeles County, California

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

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Data Year: 2023 Source: CDC STI Surveillance Population: 9,662,959
Combined
915.7
per 100K
3rd / 58
Chlamydia
602.3
per 100K • 58,200 cases
Gonorrhea
291.8
per 100K • 28,195 cases
Syphilis P&S
21.6
per 100K • 2,085 cases

Los Angeles County has one of the higher STD burdens in California, with a combined rate of 915.7 per 100,000 residents in 2023 — ranking 3rd of 58 counties. Reported infections included chlamydia at 602.3 per 100,000 (58,200 cases, 23% above the state rate), gonorrhea at 291.8 per 100,000 (28,195 cases, 53% above the state rate), syphilis at 21.6 per 100,000 (2,085 cases, 33% above the state rate). Confidential STD testing is available throughout Los Angeles County — knowing your status is the only way to catch infections that often show no symptoms.

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Los Angeles County County vs California Average

Infection Los Angeles County County California Rate Difference
Chlamydia 602.3 491.1 23% above
Gonorrhea 291.8 190.2 53% above
Syphilis (P&S) 21.6 16.3 33% above

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Other Counties in California

STD Testing Locations in Los Angeles County, California

Agoura Hills, CA → Alhambra, CA → Arcadia, CA → Artesia, CA → Avocado Heights, CA → Azusa, CA → Baldwin Park, CA → Bell, CA → Bell Gardens, CA → Bellflower, CA → Beverly Hills, CA → Burbank, CA → Calabasas, CA → Carson, CA → Castaic, CA → Cerritos, CA → Charter Oak, CA → Citrus, CA → Claremont, CA → Commerce, CA → Compton, CA → Covina, CA → Cudahy, CA → Culver City, CA → Del Aire, CA → Diamond Bar, CA → Downey, CA → Duarte, CA → East Los Angeles, CA → East Rancho Dominguez, CA → East San Gabriel, CA → El Monte, CA → El Segundo, CA → Florence Graham, CA → Gardena, CA → Glendale, CA → Glendora, CA → Hacienda Heights, CA → Hawaiian Gardens, CA → Hawthorne, CA → Hermosa Beach, CA → Huntington Park, CA → Inglewood, CA → La Canada Flintridge, CA → La Mirada, CA → La Puente, CA → La Verne, CA → Lake Los Angeles, CA → Lakewood, CA → Lancaster, CA → Lawndale, CA → Lennox, CA → Lomita, CA → Long Beach, CA → Lynwood, CA → Malibu, CA → Manhattan Beach, CA → Marina Del Rey, CA → Maywood, CA → Monrovia, CA → Montebello, CA → Monterey Park, CA → Norwalk, CA → Palmdale, CA → Palos Verdes Estates, CA → Paramount, CA → Pasadena, CA → Pico Rivera, CA → Pomona, CA → Quartz Hill, CA → Rancho Palos Verdes, CA → Redondo Beach, CA → Rolling Hills Estates, CA → Rosemead, CA → Rowland Heights, CA → San Dimas, CA → San Fernando, CA → San Gabriel, CA → San Marino, CA → Santa Clarita, CA → Santa Fe Springs, CA → Santa Monica, CA → Sierra Madre, CA → Signal Hill, CA → South El Monte, CA → South Gate, CA → South Pasadena, CA → South San Jose Hills, CA → South Whittier, CA → Temple City, CA → Torrance, CA → Valinda, CA → View Park Windsor Hills, CA → Vincent, CA → Walnut, CA → Walnut Park, CA → West Carson, CA → West Covina, CA → West Hollywood, CA → West Puente Valley, CA → Westmont, CA → Whittier, CA → Willowbrook, CA →

FAQs

Los Angeles County ranks 3rd of 58 California counties for combined STD rate in 2023, at 915.7 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Los Angeles County, with 58,200 cases at a rate of 602.3 per 100,000 residents.
STDTest.com lists confidential testing locations across Los Angeles 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