STD Rates in Iowa County, Wisconsin

2023 CDC surveillance data for Iowa County, Wisconsin — chlamydia, gonorrhea, and syphilis rates with state comparisons.

Data Year: 2023 Source: CDC STI Surveillance Population: 23,957
Combined
267.1
per 100K
27th / 72
Chlamydia
225.4
per 100K • 54 cases
US rate: 490.7
32nd of 72 in Wisconsin
Higher than 36% of US counties
Gonorrhea
29.2
per 100K • 7 cases
Based on 7 cases — interpret with care
US rate: 178.2
Syphilis P&S
12.5
per 100K • 3 cases
Based on 3 cases — interpret with care
US rate: 15.8

Iowa County reported a combined STD rate of 267.1 per 100,000 residents in 2023, placing it 27th of 72 Wisconsin counties — in the upper half of the state. Reported infections included chlamydia at 225.4 per 100,000 (54 cases, 47% below the state rate), gonorrhea at 29.2 per 100,000 (7 cases, too few for a reliable comparison), syphilis at 12.5 per 100,000 (3 cases, too few for a reliable comparison). Confidential STD testing is available throughout Iowa County — knowing your status is the only way to catch infections that often show no symptoms.

STD Trends in Iowa 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.

Chlamydia
225.4
per 100K in 2023
0.0 in 2000
Peak 225.4 in 2023
Gonorrhea
29.2
per 100K in 2023
0.0 in 2000
Peak 42.1 in 2021
Syphilis (P&S)
12.5
per 100K in 2023
0.0 in 2000
Peak 12.5 in 2023

Source: CDC NCHHSTP AtlasPlus county surveillance, 2000–2023.

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Iowa County vs Wisconsin and the US

Infection Iowa County Wisconsin US vs Wisconsin vs US Rank in Wisconsin
Chlamydia 225.454 cases 422.8 490.7 46.7% below 54.1% below 32nd of 72
Gonorrhea 29.27 cases 118.5 178.2 Too few cases Too few cases –
Syphilis (P&S) 12.53 cases 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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FAQs

Iowa County ranks 27th of 72 Wisconsin counties for combined STD rate in 2023, at 267.1 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Iowa County, with 54 cases at a rate of 225.4 per 100,000 residents.
STDTest.com lists confidential testing locations across Iowa County and Wisconsin. Many offer same-day appointments with results in 1–3 days.
Data sourced from the CDC's annual STI Surveillance Report. Rates are per 100,000 population and reflect reported cases only — actual prevalence is likely higher due to undiagnosed infections. While we strive for accuracy, STDTest.com makes no representations or warranties regarding the completeness or accuracy of this data and is not responsible for any errors or omissions. This page is for informational purposes only and does not constitute medical advice.