Grand Rapids, MI Radon Mitigation and Testing

Q: What is the average radon level in Grand Rapids, MI?

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Grand Rapids in?

Grand Rapids is in Kent County, EPA Zone 2.

Q: How much does radon mitigation cost in Grand Rapids?

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

Avg: 3.00 pCi/L

Kent County

EPA Zone 2

1 user test

Michigan's second-largest city, located in Kent County, shows radon levels averaging 3.0 pCi/L based on available testing data. While this falls below the EPA action level of 4.0 pCi/L, the reading still warrants attention given the area's glacial geology and prevalence of basement foundations. Residents across Grand Rapids' numerous zip codes should consider radon testing, as individual homes can vary significantly from city-wide averages.

3.00

pCi/L average

Below EPA Action Level

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

4.0 EPA

10+

Grand Rapids, MI Radon Mitigation

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

Grand Rapids, MI Radon Testing

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

Grand Rapids, Michigan Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Grand Rapids, MI	100+ Years	Full Basement	Jan 2020

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

Grand Rapids Radon Facts

Key details about the radon risk profile for Grand Rapids and the 49503 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Kent County, MI

Zip Code

49503

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Grand Rapids and the 49503 zip code are located in Kent County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Grand Rapids, MI

What is the average radon level in Grand Rapids, MI?

Based on 1 user-submitted test, the average radon level in Grand Rapids is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Grand Rapids in?

Grand Rapids and the 49503 zip code are in Kent 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 Grand Rapids?

Radon mitigation in Grand Rapids 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 Grand Rapids?

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