STD Rates in Santa Cruz County, California
2023 CDC surveillance data for Santa Cruz County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Santa Cruz County reported a combined STD rate of 505.5 per 100,000 residents in 2023, placing it 24th of 58 California counties — in the upper half of the state. Reported infections included chlamydia at 400.3 per 100,000 (1,047 cases, 18% below the state rate), gonorrhea at 86.8 per 100,000 (227 cases, 54% below the state rate), syphilis at 18.4 per 100,000 (48 cases, 13% above the state rate). Confidential STD testing is available throughout Santa Cruz County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Santa Cruz 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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Santa Cruz County vs California and the US
| Infection | Santa Cruz County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 400.31,047 cases | 491.1 | 490.7 | 18.5% below | 18.4% below | 21st of 58 |
| Gonorrhea | 86.8227 cases | 190.2 | 178.2 | 54.4% below | 51.3% below | 31st of 58 |
| Syphilis (P&S) | 18.448 cases | 16.3 | 15.8 | 12.9% above | 16.5% above | 14th 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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