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Ypsilanti, MI Radon Levels

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


Ypsilanti, MI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Washtenaw County, MI
Zip Code 48197
Avg. User Level 8.50 pCi/L
User Tests 4

Positioned in Washtenaw County as part of the Ann Arbor Metro, Ypsilanti shows an average radon level of 8.5 pCi/L based on local testing data. This reading significantly exceeds the EPA action level of 4.0 pCi/L, reflecting the area's glacial geology and prevalence of basement foundations that can trap radon gas effectively.

8.50
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Ypsilanti, MI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Ypsilanti, MI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Ypsilanti, MI Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Ypsilanti, MI 0-20 Years Full Basement
9 pCi/L Ypsilanti, MI 100+ Years Partial Basement
4 pCi/L Ypsilanti, MI 21-50 Years Full Basement
16 pCi/L Ypsilanti, MI 0-20 Years Full Basement

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

Radon Readings Near Ypsilanti, MI

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

CityDistanceAvg User LevelReadings
Ann Arbor 6.8 mi 5.00 pCi/L 1
Canton 8.8 mi 3.00 pCi/L 2
Saline 10.2 mi 1.00 pCi/L 1
Plymouth 11.2 mi 4.33 pCi/L 3
Northville 13.8 mi 5.33 pCi/L 3
South Lyon 15.3 mi 15.00 pCi/L 2
Dexter 17.1 mi 4.00 pCi/L 1
Taylor 17.5 mi 6.00 pCi/L 2

Washtenaw County Radon Profile

Because of its underlying geology, Washtenaw County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 4 cities in Washtenaw County average 6.29 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Washtenaw County home regardless of zone or a neighbor's results.

Radon FAQ for Ypsilanti, MI

What is the average radon level in Ypsilanti, MI?
Based on 4 user-submitted tests, the average radon level in Ypsilanti is 8.50 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 Ypsilanti in?
Ypsilanti and the 48197 zip code are in Washtenaw County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Ypsilanti?
Radon mitigation in Ypsilanti 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 Ypsilanti?
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.