STD Rates in Portage County, Wisconsin
2023 CDC surveillance data for Portage County, Wisconsin — chlamydia, gonorrhea, and syphilis rates with state comparisons.
Portage County reported a combined STD rate of 290.1 per 100,000 residents in 2023, placing it 21st of 72 Wisconsin counties — in the upper half of the state. Reported infections included chlamydia at 256.3 per 100,000 (182 cases, 39% below the state rate), gonorrhea at 32.4 per 100,000 (23 cases, 73% below the state rate), syphilis at 1.4 per 100,000 (1 case, too few for a reliable comparison). Confidential STD testing is available throughout Portage County — knowing your status is the only way to catch infections that often show no symptoms.
STD Trends in Portage County, 2000–2023
Reported cases per 100,000 residents each year, against the Wisconsin 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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Portage County vs Wisconsin and the US
| Infection | Portage County | Wisconsin | US | vs Wisconsin | vs US | Rank in Wisconsin |
|---|---|---|---|---|---|---|
| Chlamydia | 256.3182 cases | 422.8 | 490.7 | 39.4% below | 47.8% below | 19th of 72 |
| Gonorrhea | 32.423 cases | 118.5 | 178.2 | 72.7% below | 81.8% below | 20th of 72 |
| Syphilis (P&S) | 1.41 case | 9.1 | 15.8 | Too few cases | Too few cases | – |
Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Wisconsin’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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