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      Marion, KS Radon Levels

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

      Marion, KS Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Marion County, KS
      Zip Code 66861
      Avg. User Level 9.00 pCi/L
      User Tests 1

      County seat of Marion County in central Kansas, Marion sits on prairie soils over sedimentary bedrock typical of the Great Plains region. The community's housing stock includes both historic downtown structures and residential neighborhoods, with foundation types ranging from full basements to crawl spaces depending on construction era. While radon testing data remains limited for this EPA Zone 1 area, individual home testing is recommended to establish property-specific baseline readings.

      9.00
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Marion, KS Radon Mitigation

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

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      Marion, KS Radon Levels

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

      Radon LevelCityHome AgeFoundation
      9 pCi/L Marion, KS 21-50 Years Full Basement

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

      Radon FAQ for Marion, KS

      What is the average radon level in Marion, KS?
      Based on 1 user-submitted test, the average radon level in Marion is 9.00 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 Marion in?
      Marion and the 66861 zip code are in Marion 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 Marion?
      Radon mitigation in Marion 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 Marion?
      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 Kansas

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

      CityAvg User Radon LevelSubmissions
      Topeka 6.00 pCi/L 1
      Overland Park No submissions 0

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 316-854-1058

      A licensed contractor will contact you immediately.

      * Required