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      Iowa City, IA Radon Levels

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

      Iowa City, IA Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Johnson County, IA
      Zip Code 52240
      Avg. User Level 7.00 pCi/L
      User Tests 1

      Home to the University of Iowa in Johnson County, Iowa City shows an average radon level of 7.0 pCi/L across zip codes 52240, 52242, 52245, and 52246, significantly exceeding EPA's 4.0 pCi/L action threshold. The area's Devonian limestone bedrock and glacial till deposits create ideal conditions for radon accumulation in the many basement-equipped homes throughout this college community.

      7.00
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Iowa City, IA Radon Mitigation

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

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      Iowa City, IA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      7 pCi/L Iowa City, IA 21-50 Years Full Basement

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

      Radon FAQ for Iowa City, IA

      What is the average radon level in Iowa City, IA?
      Based on 1 user-submitted test, the average radon level in Iowa City is 7.00 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 Iowa City in?
      Iowa City and the 52240 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 Iowa City?
      Radon mitigation in Iowa City 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 Iowa City?
      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

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578

      A licensed contractor will contact you immediately.

      * Required