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Grimes, IA Radon Levels

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


Grimes, IA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Polk County, IA
Zip Code 50111
Avg. User Level 5.50 pCi/L
User Tests 2

Grimes is located in Polk County within the Des Moines Metro area, where Iowa's glacial soils over limestone bedrock create conditions conducive to radon gas production. Testing data reveals an average radon level of 5.5 pCi/L, which exceeds the EPA's 4.0 pCi/L action level and indicates residents should strongly consider mitigation measures. The community's suburban housing stock, predominantly built with full basements, provides enclosed spaces where radon can accumulate to concerning levels.

5.50
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Grimes, IA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Grimes, IA Radon Mitigation

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Grimes, IA Radon Levels

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

Radon LevelCityHome AgeFoundation
8 pCi/L Grimes, IA 0-20 Years No Basement/All Slab
3 pCi/L Grimes, IA 0-20 Years Full Basement

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Radon FAQ for Grimes, IA

What is the average radon level in Grimes, IA?
Based on 2 user-submitted tests, the average radon level in Grimes is 5.50 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 Grimes in?
Grimes and the 50111 zip code are in Polk 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 Grimes?
Radon mitigation in Grimes 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 Grimes?
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 Iowa

Cities in Iowa with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Waterloo 8.50 pCi/L 4
Ames 9.67 pCi/L 3
Fairfield 14.00 pCi/L 2
Mount Pleasant 12.00 pCi/L 2
Ottumwa 5.50 pCi/L 2
Iowa City 7.00 pCi/L 1
Muscatine No submissions 0