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Marquette, MI Radon Levels

Check local Marquette radon levels and find certified testing and mitigation professionals to keep your home safe


Marquette, MI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Marquette County, MI
Zip Code 49855
Avg. User Level 8.00 pCi/L
User Tests 1

Perched along Lake Superior in Michigan's Upper Peninsula, Marquette in Marquette County shows an average radon level of 8.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. The area's Precambrian granite and gneiss bedrock, combined with glacial deposits, creates conditions favorable for elevated radon concentrations. Residents should prioritize radon testing and mitigation given these consistently high readings.

8.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Marquette, MI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Marquette, MI Radon Mitigation

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Marquette, MI Radon Levels

User-submitted radon test readings from homes in the Marquette area.

Radon LevelCityHome AgeFoundation
8 pCi/L Marquette, MI 21-50 Years Full Basement

Have a radon test result for Marquette? Submit your reading to help other homeowners.

Radon Readings Near Marquette, MI

Compare radon levels in Marquette with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Calumet 13.6 mi 7.00 pCi/L 1
Houghton 21.0 mi 3.00 pCi/L 1
Hancock 22.3 mi 5.00 pCi/L 1
Negaunee 41.9 mi 10.00 pCi/L 1
Gwinn 54.8 mi 9.00 pCi/L 1

Marquette County Radon Profile

The soils and bedrock of Marquette County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 3 cities in Marquette County average 9.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Marquette County to test, as levels can differ between neighboring homes.

Radon FAQ for Marquette, MI

What is the average radon level in Marquette, MI?
Based on 1 user-submitted test, the average radon level in Marquette is 8.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Marquette in?
Marquette and the 49855 zip code are in Marquette County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Marquette?
Radon mitigation in Marquette typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Marquette?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.