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Aspen, CO Radon Levels

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


Aspen, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Pitkin County, CO
Zip Code 81611
Avg. User Level 4.00 pCi/L
User Tests 1

Nestled in Pitkin County high in the Colorado Rockies, this renowned mountain community shows an average radon reading of 4.0 pCi/L, right at the EPA action threshold. Despite its EPA Zone 1 classification and high elevation, current data suggests manageable levels in zip code 81611. However, the area's granite geology and tight building construction for energy efficiency can trap radon, making testing essential.

4.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Aspen, CO Radon Mitigation

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

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Aspen, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Aspen, CO 51-99 Years

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

Radon Readings Near Aspen, CO

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

CityDistanceAvg User LevelReadings
Crested Butte 23.7 mi 8.56 pCi/L 9
Edwards 24.9 mi 6.75 pCi/L 4
Leadville 28.2 mi 5.67 pCi/L 3
Gypsum 33.1 mi 5.00 pCi/L 1
Glenwood Springs 35.4 mi 8.00 pCi/L 1
Vail 41.3 mi 6.00 pCi/L 1
Buena Vista 43.9 mi 12.57 pCi/L 7
Fairplay 44.2 mi 12.00 pCi/L 9

Pitkin County Radon Profile

The bedrock and soils beneath Pitkin County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Pitkin County average 4.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Pitkin County.

Radon FAQ for Aspen, CO

What is the average radon level in Aspen, CO?
Based on 1 user-submitted test, the average radon level in Aspen is 4.00 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 Aspen in?
Aspen and the 81611 zip code are in Pitkin 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 Aspen?
Radon mitigation in Aspen 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 Aspen?
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.