STD Rates in Ventura County, California
2023 CDC surveillance data for Ventura County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Ventura County reported a combined STD rate of 485.8 per 100,000 residents in 2023, placing it 26th of 58 California counties — in the upper half of the state. Reported infections included chlamydia at 390.1 per 100,000 (3,236 cases, 21% below the state rate), gonorrhea at 85.2 per 100,000 (707 cases, 55% below the state rate), syphilis at 10.5 per 100,000 (87 cases, 36% below the state rate). Routine testing is the surest way to catch STDs early, since many produce no symptoms. Ventura County has confidential testing locations available.
STD Trends in Ventura County, 2000–2023
Reported cases per 100,000 residents each year, against the California rate (dashed). In a county this size a handful of cases moves the rate a long way, so read the shape rather than any single year.
Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.
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Ventura County vs California and the US
| Infection | Ventura County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 390.13,236 cases | 491.1 | 490.7 | 20.6% below | 20.5% below | 23rd of 58 |
| Gonorrhea | 85.2707 cases | 190.2 | 178.2 | 55.2% below | 52.2% below | 33rd of 58 |
| Syphilis (P&S) | 10.587 cases | 16.3 | 15.8 | 35.6% below | 33.5% below | 38th of 58 |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among California’s counties. The US rate is all 50 states combined. Comparisons are left out where fewer than 20 cases were reported, because a rate built on so few cases can swing widely from one year to the next.
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