STD Rates in Linn County, Iowa
2023 CDC surveillance data for Linn County, Iowa — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Linn County has one of the higher STD burdens in Iowa, with a combined rate of 688.3 per 100,000 residents in 2023 — ranking 10th of 99 counties. Reported infections included chlamydia at 513.6 per 100,000 (1,176 cases, 20% above the state rate), gonorrhea at 163.3 per 100,000 (374 cases, 40% above the state rate), syphilis at 11.4 per 100,000 (26 cases, 11% 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 Linn County.
STD Trends in Linn 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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Linn County vs Iowa and the US
| Infection | Linn County | Iowa | US | vs Iowa | vs US | Rank in Iowa |
|---|---|---|---|---|---|---|
| Chlamydia | 513.61,176 cases | 426.8 | 490.7 | 20.3% above | 4.7% above | 11th of 99 |
| Gonorrhea | 163.3374 cases | 116.8 | 178.2 | 39.8% above | 8.4% below | 7th of 99 |
| Syphilis (P&S) | 11.426 cases | 10.3 | 15.8 | 10.7% above | 27.8% below | 16th of 99 |
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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