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      Le Mars, IA Radon Levels

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

      Le Mars, IA Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Plymouth County, IA
      Zip Code 51031
      Avg. User Level 12.50 pCi/L
      User Tests 2

      Located in Plymouth County in northwestern Iowa, Le Mars sits on loess and glacial deposits over Cretaceous bedrock that can produce significant radon levels. With an average reading of 10.0 pCi/L from limited testing, this substantially exceeds the EPA action threshold. Residents in zip code 51031 should prioritize radon testing and mitigation given these elevated readings.

      12.50
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Le Mars, IA Radon Mitigation

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      Le Mars, IA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      15 pCi/L Le Mars, IA 0-20 Years Full Basement
      10 pCi/L Le Mars, IA 51-99 Years —

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

      Radon FAQ for Le Mars, IA

      What is the average radon level in Le Mars, IA?
      Based on 2 user-submitted tests, the average radon level in Le Mars is 12.50 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 Le Mars in?
      Le Mars and the 51031 zip code are in Plymouth 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 Le Mars?
      Radon mitigation in Le Mars 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 Le Mars?
      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