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Coralville, IA Radon Levels

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


Coralville, IA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Johnson County, IA
Zip Code 52241
Avg. User Level 8.00 pCi/L
User Tests 1

Part of the Iowa City metro area in Johnson County, Coralville shows an average radon level of 8.0 pCi/L based on available testing data, which significantly exceeds the EPA action level of 4.0 pCi/L. Located in EPA Zone 1 within zip code 52241, this community sits atop glacial deposits over limestone bedrock that create ideal conditions for radon production and accumulation. Given these elevated readings, all Coralville residents should test their homes and consider mitigation if levels exceed EPA guidelines.

8.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Coralville, IA Radon Mitigation

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Coralville, IA Radon Levels

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

Radon LevelCityHome AgeFoundation
8 pCi/L Coralville, IA 51-99 Years Full Basement

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

Radon FAQ for Coralville, IA

What is the average radon level in Coralville, IA?
Based on 1 user-submitted test, the average radon level in Coralville is 8.00 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 Coralville in?
Coralville and the 52241 zip code are in Johnson 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 Coralville?
Radon mitigation in Coralville 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 Coralville?
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