STD Rates in Modoc County, California
2023 CDC surveillance data for Modoc County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Modoc County is among the lower-burden counties in California, reporting a combined STD rate of 258.9 per 100,000 residents in 2023 — 47th of 58 counties. Reported infections included chlamydia at 247.1 per 100,000 (21 cases, 50% below the state rate), syphilis at 11.8 per 100,000 (1 case, too few for a reliable comparison). No gonorrhea cases were reported in Modoc County in 2023. Routine testing is the surest way to catch STDs early, since many produce no symptoms. Modoc County has confidential testing locations available.
STD Trends in Modoc 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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Modoc County vs California and the US
| Infection | Modoc County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 247.121 cases | 491.1 | 490.7 | 49.7% below | 49.6% below | 45th of 58 |
| Gonorrhea | 00 cases | 190.2 | 178.2 | Too few cases | Too few cases | – |
| Syphilis (P&S) | 11.81 case | 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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