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      Mesa, AZ Radon Levels

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

      Mesa, AZ Radon Facts

      EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
      County Maricopa County, AZ
      Zip Code 85201
      Avg. User Level 6.40 pCi/L
      User Tests 5

      Arizona's third-largest city in Maricopa County shows concerning radon levels, with local testing revealing an average of 6.4 pCi/L — significantly exceeding the EPA's 4.0 pCi/L action threshold. Despite the desert climate, Mesa's underlying granite bedrock and uranium-bearing formations contribute to radon accumulation in homes across multiple zip codes. The city's predominantly slab-on-grade construction doesn't eliminate radon risk, particularly in areas where bedrock is closer to the surface.

      6.40
      pCi/L average
      Above EPA Action Level

      Based on 5 user-submitted radon tests for homes in Mesa, AZ. The EPA recommends taking action at or above 4.0 pCi/L.

      0
      4.0 EPA
      10+

      Mesa, AZ Radon Mitigation

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

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      Mesa, AZ Radon Levels

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

      Radon LevelCityHome AgeFoundation
      3 pCi/L Mesa, AZ 0-20 Years No Basement/All Slab
      7 pCi/L Mesa, AZ 0-20 Years Partial Basement
      6 pCi/L Mesa, AZ 21-50 Years No Basement/All Slab
      9 pCi/L Mesa, AZ 21-50 Years No Basement/All Crawl Space

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

      Radon FAQ for Mesa, AZ

      What is the average radon level in Mesa, AZ?
      Based on 5 user-submitted tests, the average radon level in Mesa is 6.40 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 Mesa in?
      Mesa and the 85201 zip code are in Maricopa 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 Mesa?
      Radon mitigation in Mesa 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 Mesa?
      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 Arizona

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

      CityAvg User Radon LevelSubmissions
      Prescott 6.79 pCi/L 14
      Scottsdale 7.75 pCi/L 12
      Phoenix 5.40 pCi/L 10
      Mesa 6.40 pCi/L 5
      Flagstaff 6.00 pCi/L 5
      Tucson 5.25 pCi/L 4
      Payson 6.67 pCi/L 3
      Glendale 6.50 pCi/L 2
      Peoria 3.00 pCi/L 2
      Prescott Valley 4.00 pCi/L 1

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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