STD Rates in Kern County, California
2023 CDC surveillance data for Kern County, California — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Kern County has one of the higher STD burdens in California, with a combined rate of 831.0 per 100,000 residents in 2023 — ranking 4th of 58 counties. Reported infections included chlamydia at 658.8 per 100,000 (6,020 cases, 34% above the state rate), gonorrhea at 159.1 per 100,000 (1,454 cases, 16% below the state rate), syphilis at 13.1 per 100,000 (120 cases, 20% below the state rate). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Kern County.
STD Trends in Kern 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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Kern County vs California and the US
| Infection | Kern County | California | US | vs California | vs US | Rank in California |
|---|---|---|---|---|---|---|
| Chlamydia | 658.86,020 cases | 491.1 | 490.7 | 34.1% above | 34.3% above | 3rd of 58 |
| Gonorrhea | 159.11,454 cases | 190.2 | 178.2 | 16.4% below | 10.7% below | 11th of 58 |
| Syphilis (P&S) | 13.1120 cases | 16.3 | 15.8 | 19.6% below | 17.1% below | 30th 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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