STD Rates in Monroe County, Michigan

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

Data Year: 2023 Source: CDC STI Surveillance Population: 155,070
Combined
265.7
per 100K
36th / 83
Chlamydia
219.9
per 100K • 341 cases
US rate: 490.7
33rd of 83 in Michigan
Higher than 34% of US counties
Gonorrhea
44.5
per 100K • 69 cases
US rate: 178.2
30th of 83 in Michigan
Higher than 36% of US counties
Syphilis P&S
1.3
per 100K • 2 cases
Based on 2 cases — interpret with care
US rate: 15.8

Monroe County reported a combined STD rate of 265.7 per 100,000 residents in 2023, placing it 36th of 83 Michigan counties — in the upper half of the state. Reported infections included chlamydia at 219.9 per 100,000 (341 cases, 49% below the state rate), gonorrhea at 44.5 per 100,000 (69 cases, 71% below the state rate), syphilis at 1.3 per 100,000 (2 cases, too few for a reliable comparison). Confidential STD testing is available throughout Monroe County — knowing your status is the only way to catch infections that often show no symptoms.

STD Trends in Monroe County, 2000–2023

Reported cases per 100,000 residents each year, against the Michigan 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
219.9
per 100K in 2023
86.7 in 2000
Peak 272.4 in 2019
Gonorrhea
44.5
per 100K in 2023
13.0 in 2000
Peak 113.7 in 2020
Syphilis (P&S)
1.3
per 100K in 2023
1.4 in 2000
Peak 6.7 in 2017

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

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Monroe County vs Michigan and the US

Infection Monroe County Michigan US vs Michigan vs US Rank in Michigan
Chlamydia 219.9341 cases 429.5 490.7 48.8% below 55.2% below 33rd of 83
Gonorrhea 44.569 cases 152.2 178.2 70.8% below 75% below 30th of 83
Syphilis (P&S) 1.32 cases 8.4 15.8 Too few cases Too few cases –

Rates per 100,000 residents, 2023. Ranks run from the highest rate (1st) among Michigan’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

Monroe County ranks 36th of 83 Michigan counties for combined STD rate in 2023, at 265.7 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in Monroe County, with 341 cases at a rate of 219.9 per 100,000 residents.
STDTest.com lists confidential testing locations across Monroe County and Michigan. 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.