STD Rates in St. Louis County, Minnesota

2023 CDC surveillance data for St. Louis County, Minnesota — chlamydia, gonorrhea, and syphilis rates with state comparisons.

Data Year: 2023 Source: CDC STI Surveillance Population: 200,537
Combined
396.5
per 100K
13th / 87
Chlamydia
298.2
per 100K • 598 cases
US rate: 490.7
16th of 87 in Minnesota
Higher than 53% of US counties
Gonorrhea
88.8
per 100K • 178 cases
US rate: 178.2
7th of 87 in Minnesota
Higher than 61% of US counties
Syphilis P&S
9.5
per 100K • 19 cases
Based on 19 cases — interpret with care
US rate: 15.8

St. Louis County has one of the higher STD burdens in Minnesota, with a combined rate of 396.5 per 100,000 residents in 2023 — ranking 13th of 87 counties. Reported infections included chlamydia at 298.2 per 100,000 (598 cases, 21% below the state rate), gonorrhea at 88.8 per 100,000 (178 cases, 34% below the state rate), syphilis at 9.5 per 100,000 (19 cases, 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 St. Louis County.

STD Trends in St. Louis County, 2000–2023

Reported cases per 100,000 residents each year, against the Minnesota 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
298.2
per 100K in 2023
133.1 in 2000
Peak 444.5 in 2017
Gonorrhea
88.8
per 100K in 2023
41.4 in 2000
Peak 181.2 in 2021
Syphilis (P&S)
9.5
per 100K in 2023
0.5 in 2000
Peak 17.5 in 2022

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

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St. Louis County vs Minnesota and the US

Infection St. Louis County Minnesota US vs Minnesota vs US Rank in Minnesota
Chlamydia 298.2598 cases 379.5 490.7 21.4% below 39.2% below 16th of 87
Gonorrhea 88.8178 cases 134.5 178.2 34% below 50.2% below 7th of 87
Syphilis (P&S) 9.519 cases 8.7 15.8 Too few cases Too few cases –

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

St. Louis County ranks 13th of 87 Minnesota counties for combined STD rate in 2023, at 396.5 per 100,000 residents.
In 2023, chlamydia was the most frequently reported STD in St. Louis County, with 598 cases at a rate of 298.2 per 100,000 residents.
STDTest.com lists confidential testing locations across St. Louis County and Minnesota. 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.