STD Rates in Warren County, Iowa

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

Data Year: 2023 Source: CDC STI Surveillance Population: 55,207
Combined
304.3
per 100K
43rd / 99
Chlamydia
239.1
per 100K • 132 cases
US rate: 490.7
46th of 99 in Iowa
Higher than 40% of US counties
Gonorrhea
63.4
per 100K • 35 cases
US rate: 178.2
30th of 99 in Iowa
Higher than 49% of US counties
Syphilis P&S
1.8
per 100K • 1 cases
Based on 1 case — interpret with care
US rate: 15.8

Warren County reported a combined STD rate of 304.3 per 100,000 residents in 2023, placing it 43rd of 99 Iowa counties — in the upper half of the state. Reported infections included chlamydia at 239.1 per 100,000 (132 cases, 44% below the state rate), gonorrhea at 63.4 per 100,000 (35 cases, 46% below the state rate), syphilis at 1.8 per 100,000 (1 case, too few for a reliable comparison). Many STDs show no symptoms, so testing is the only reliable way to know your status. Confidential options are available across Warren County.

STD Trends in Warren 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.

Chlamydia
239.1
per 100K in 2023
90.7 in 2000
Peak 359.5 in 2019
Gonorrhea
63.4
per 100K in 2023
7.4 in 2000
Peak 124.0 in 2020
Syphilis (P&S)
1.8
per 100K in 2023
0.0 in 2000
Peak 9.4 in 2021

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

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Warren County vs Iowa and the US

Infection Warren County Iowa US vs Iowa vs US Rank in Iowa
Chlamydia 239.1132 cases 426.8 490.7 44% below 51.3% below 46th of 99
Gonorrhea 63.435 cases 116.8 178.2 45.7% below 64.4% below 30th of 99
Syphilis (P&S) 1.81 case 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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FAQs

Warren County ranks 43rd of 99 Iowa counties for combined STD rate in 2023, at 304.3 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Warren County, with 132 cases at a rate of 239.1 per 100,000 residents.
STDTest.com lists confidential testing locations across Warren County and Iowa. 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.