STD Rates in Sierra County, California
2023 CDC surveillance data for Sierra County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Sierra County is among the lower-burden counties in California, reporting a combined STD rate of 93.7 per 100,000 residents in 2023 — 58th of 58 counties. Reported infections included chlamydia at 62.5 per 100,000 (2 cases, too few for a reliable comparison), gonorrhea at 31.2 per 100,000 (1 case, too few for a reliable comparison). No syphilis cases were reported in Sierra County in 2023. Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Sierra County.
STD Trends in Sierra 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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Sierra County vs California and the US
| Infection | Sierra County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 62.52 cases | 491.1 | 490.7 | Too few cases | Too few cases | – |
| Gonorrhea | 31.21 case | 190.2 | 178.2 | Too few cases | Too few cases | – |
| Syphilis (P&S) | 00 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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