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      Corona, CA Radon Levels

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

      Corona, CA Radon Facts

      EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
      County Riverside County, CA
      Zip Code 92879
      Avg. User Level 2.00 pCi/L
      User Tests 1

      Located in Riverside County within the Riverside Metro area, Corona shows an average radon level of 2.0 pCi/L based on limited testing data across multiple zip codes. This reading falls within the EPA's recommended range, though continued testing remains advisable given Southern California's varied geological conditions. The area's mix of sedimentary and igneous geology, combined with diverse foundation types in both older and newer residential developments, makes periodic radon monitoring a sensible precaution.

      2.00
      pCi/L average
      Below EPA Action Level

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

      0
      4.0 EPA
      10+

      Corona, CA Radon Mitigation

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

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      Corona, CA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      2 pCi/L Corona, CA 21-50 Years No Basement/All Slab

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

      Radon FAQ for Corona, CA

      What is the average radon level in Corona, CA?
      Based on 1 user-submitted test, the average radon level in Corona is 2.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.
      What EPA Radon Zone is Corona in?
      Corona and the 92879 zip code are in Riverside County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
      How much does radon mitigation cost in Corona?
      Radon mitigation in Corona 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 Corona?
      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 California

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

      CityAvg User Radon LevelSubmissions
      Los Angeles 7.83 pCi/L 6
      Mammoth Lakes 10.80 pCi/L 5
      San Jose 4.20 pCi/L 5
      Rancho Palos Verdes 8.00 pCi/L 4
      Bishop 6.25 pCi/L 4
      Oakland 5.00 pCi/L 4
      Woodland Hills 7.67 pCi/L 3
      South Lake Tahoe 6.33 pCi/L 3
      Palos Verdes Peninsula 6.00 pCi/L 3
      Sacramento 4.33 pCi/L 3

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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