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      Johnstown, CO Radon Levels

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

      Johnstown, CO Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Weld County, CO
      Zip Code 80534
      Avg. User Level 9.50 pCi/L
      User Tests 4

      This Weld County community in the Fort Collins and Greeley metro areas shows an average radon level of 9.5 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold. The area's Pierre Shale formations and uranium-rich soils, combined with the region's newer suburban housing stock in zip code 80534, create conditions where radon mitigation is often necessary.

      9.50
      pCi/L average
      Above EPA Action Level

      Based on 4 user-submitted radon tests for homes in Johnstown, CO. The EPA recommends taking action at or above 4.0 pCi/L.

      0
      4.0 EPA
      10+

      Johnstown, CO Radon Mitigation

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

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      Johnstown, CO Radon Levels

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

      Radon LevelCityHome AgeFoundation
      14 pCi/L Johnstown, CO 21-50 Years Full Basement
      4 pCi/L Johnstown, CO 21-50 Years Full Basement
      6 pCi/L Johnstown, CO 0-20 Years Full Basement

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

      Radon Readings Near Johnstown, CO

      Compare radon levels in Johnstown with the closest nearby cities that have user-submitted test data.

      CityDistanceAvg User LevelReadings
      Berthoud 9.9 mi 12.00 pCi/L 2
      Loveland 10.0 mi 4.50 pCi/L 2
      Windsor 10.3 mi 7.00 pCi/L 5
      Greeley 11.7 mi 4.67 pCi/L 3
      Evans 12.3 mi 6.33 pCi/L 3
      Longmont 14.7 mi 8.00 pCi/L 4
      Fort Collins 16.7 mi 5.50 pCi/L 2
      Eaton 17.2 mi 7.00 pCi/L 1

      Weld County Radon Profile

      Weld County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 7 cities in Weld County average 8.05 pCi/L across 20 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Weld County to test, as levels can differ between neighboring homes.

      Radon FAQ for Johnstown, CO

      What is the average radon level in Johnstown, CO?
      Based on 4 user-submitted tests, the average radon level in Johnstown is 9.50 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 Johnstown in?
      Johnstown and the 80534 zip code are in Weld 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 Johnstown?
      Radon mitigation in Johnstown 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 Johnstown?
      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.

      Nearby Cities

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 970-205-9067

      A licensed contractor will contact you immediately.

      * Required