STD Rates in San Joaquin County, California
2023 CDC surveillance data for San Joaquin County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
San Joaquin County has one of the higher STD burdens in California, with a combined rate of 703.9 per 100,000 residents in 2023 — ranking 10th of 58 counties. Reported infections included chlamydia at 529.6 per 100,000 (4,242 cases, 8% above the state rate), gonorrhea at 156.8 per 100,000 (1,256 cases, 18% below the state rate), syphilis at 17.5 per 100,000 (140 cases, 7% above the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across San Joaquin County.
STD Trends in San Joaquin 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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San Joaquin County vs California and the US
| Infection | San Joaquin County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 529.64,242 cases | 491.1 | 490.7 | 7.8% above | 7.9% above | 10th of 58 |
| Gonorrhea | 156.81,256 cases | 190.2 | 178.2 | 17.6% below | 12% below | 12th of 58 |
| Syphilis (P&S) | 17.5140 cases | 16.3 | 15.8 | 7.4% above | 10.8% above | 17th 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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