STD Rates in Jefferson County, Iowa
2023 CDC surveillance data for Jefferson County, Iowa — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Jefferson County reported a combined STD rate of 284.9 per 100,000 residents in 2023, placing it 48th of 99 Iowa counties — in the upper half of the state. Reported infections included chlamydia at 213.7 per 100,000 (33 cases, 50% below the state rate), gonorrhea at 71.2 per 100,000 (11 cases, too few for a reliable comparison). No syphilis cases were reported in Jefferson County in 2023. Confidential STD testing is available throughout Jefferson County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Jefferson County, 2000–2023
Reported cases per 100,000 residents each year, against the Iowa 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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Jefferson County vs Iowa and the US
| Infection | Jefferson County | Iowa | US | vs Iowa | vs US | Rank in Iowa |
|---|---|---|---|---|---|---|
| Chlamydia | 213.733 cases | 426.8 | 490.7 | 49.9% below | 56.4% below | 53rd of 99 |
| Gonorrhea | 71.211 cases | 116.8 | 178.2 | Too few cases | Too few cases | – |
| Syphilis (P&S) | 00 cases | 10.3 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Iowa’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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