Alto, MI Radon Levels

Q: What EPA Radon Zone is Alto in?

Alto is in Kent County, EPA Zone 2.

Q: Why are radon readings shown from areas near Alto?

No homeowner radon tests have been submitted for Alto yet, so readings from the closest cities and the Kent County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Alto?

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

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

Alto, MI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Kent County, MI

Zip Code 49302

Nestled in Kent County within the Grand Rapids Metro area, Alto sits atop glacial deposits that characterize much of western Michigan's landscape. While radon testing data remains limited for this 49302 zip code community, homeowners should prioritize testing given the region's geological composition and typical full-basement construction.

4.00

pCi/L area average

Above EPA Action Level

Kent County average: 4.00 pCi/L, based on 4 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Alto itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Alto, MI Radon Mitigation

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

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Radon Readings Near Alto, MI

No homeowner tests have been submitted for Alto yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Saranac	13.6 mi	4.00 pCi/L	1
Grand Rapids	14.2 mi	3.00 pCi/L	1
Byron Center	14.7 mi	4.00 pCi/L	1
Wyoming	15.6 mi	4.00 pCi/L	1
Rockford	20.6 mi	5.00 pCi/L	1
Jenison	21.2 mi	4.00 pCi/L	2
Sunfield	22.8 mi	6.00 pCi/L	1
Hudsonville	23.0 mi	12.00 pCi/L	1

Kent County Radon Profile

EPA mapping assigns Kent County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 4 cities in Kent County average 4.00 pCi/L across 4 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 Kent County home regardless of zone or a neighbor's results.

Radon FAQ for Alto, MI

What EPA Radon Zone is Alto in?

Alto and the 49302 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.

Why are radon readings shown from areas near Alto?

No homeowner radon tests have been submitted for Alto yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Kent County average—are the best available indicator of local conditions until Alto homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Alto?

Radon mitigation in Alto 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 Alto?

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.