Ann Arbor, MI Radon Mitigation and Testing

Q: What is the average radon level in Ann Arbor, MI?

Based on 1 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Ann Arbor in?

Ann Arbor is in Washtenaw County, EPA Zone 1.

Q: How much does radon mitigation cost in Ann Arbor?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 5.00 pCi/L

Washtenaw County

EPA Zone 1

1 user test

Ann Arbor is located in Washtenaw County, Michigan. With 1 user-submitted readings averaging 5.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 48103 zip code.

5.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Ann Arbor, MI Radon Mitigation

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

Ann Arbor, MI Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Ann Arbor, Michigan Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Ann Arbor, MI	51-99 Years	Full Basement	Oct 2024

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

Ann Arbor Radon Facts

Key details about the radon risk profile for Ann Arbor and the 48103 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Washtenaw County, MI

Zip Code

48103

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

Ann Arbor and the 48103 zip code are located in Washtenaw County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Ann Arbor, MI

What is the average radon level in Ann Arbor, MI?

Based on 1 user-submitted test, the average radon level in Ann Arbor is 5.00 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 Ann Arbor in?

Ann Arbor and the 48103 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 Ann Arbor?

Radon mitigation in Ann Arbor 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 Ann Arbor?

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.

Most Active Radon Markets in Michigan

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Novi	5.00 pCi/L	7
Rochester	9.00 pCi/L	5
Battle Creek	6.60 pCi/L	5
White Lake	10.00 pCi/L	4
Ypsilanti	8.50 pCi/L	4
Waterford	7.75 pCi/L	4
Howell	7.50 pCi/L	4
Gaylord	6.00 pCi/L	4
Gladstone	5.25 pCi/L	4
West Bloomfield	5.25 pCi/L	4
Clarkston	5.00 pCi/L	4
Flint	9.00 pCi/L	3
Pinckney	7.33 pCi/L	3
Northville	5.33 pCi/L	3
Milford	4.33 pCi/L	3
Plymouth	4.33 pCi/L	3
Portage	3.33 pCi/L	3
Lake Orion	11.00 pCi/L	2
Oxford	11.00 pCi/L	2
Grand Ledge	7.00 pCi/L	2