STD Rates in Nevada County, California
2023 CDC surveillance data for Nevada County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Nevada County is among the lower-burden counties in California, reporting a combined STD rate of 251.8 per 100,000 residents in 2023 — 48th of 58 counties. Reported infections included chlamydia at 170.5 per 100,000 (174 cases, 65% below the state rate), gonorrhea at 71.5 per 100,000 (73 cases, 62% below the state rate), syphilis at 9.8 per 100,000 (10 cases, too few for a reliable comparison). Confidential STD testing is available throughout Nevada County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Nevada 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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Nevada County vs California and the US
| Infection | Nevada County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 170.5174 cases | 491.1 | 490.7 | 65.3% below | 65.3% below | 49th of 58 |
| Gonorrhea | 71.573 cases | 190.2 | 178.2 | 62.4% below | 59.9% below | 36th of 58 |
| Syphilis (P&S) | 9.810 cases | 16.3 | 15.8 | Too few cases | Too few cases | – |
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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