The following tables, slide presentations and annual reports provide the most recent available data and statistics for reportable sexually transmitted infections (STI) in California. These files include data for chlamydia, gonorrhea and syphilis.
Cases of chlamydia, gonorrhea, syphilis, and congenital syphilis decreased in California in 2024, marking the third consecutive year of decline. CDPH urges continued prevention, education, testing, and treatment to sustain progress and protect Californian’s public health. Read the full news release.
Please use either Google Chrome or Mozilla Firefox as the web browser to access the STI Surveillance Report files as they may not properly download when using Internet Explorer or Microsoft Edge.
Requests for additional local health jurisdiction level data should be submitted directly to that jurisdiction.
For STD case definitions, please visit the Case Definitions for Reportable Sexually Transmitted Diseases page.
For STD-related CalREDIE help, please email STDCalREDIE@cdph.ca.gov.
For more information about STDs, please visit the Office of STIs and HCV program page.