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Silverthorne, CO Radon Levels

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


Silverthorne, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Summit County, CO
Zip Code 80498
Avg. User Level 10.00 pCi/L
User Tests 3

High-altitude Silverthorne in Summit County demonstrates Colorado's significant radon challenge, with local readings averaging 10.0 pCi/L — well above EPA action levels. The Rocky Mountain geology and elevation of zip code 80498 contribute to these elevated readings. Mountain homes with walkout basements and unique foundation designs require specialized radon mitigation approaches given these consistently high levels.

10.00
pCi/L average
Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Silverthorne, CO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Silverthorne, CO Radon Mitigation

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

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Silverthorne, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L Silverthorne, CO 0-20 Years Full Basement
18 pCi/L Silverthorne, CO 0-20 Years Full Basement

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

Radon Readings Near Silverthorne, CO

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

CityDistanceAvg User LevelReadings
Vail 9.5 mi 6.00 pCi/L 1
Dillon 17.6 mi 8.50 pCi/L 2
Kremmling 22.6 mi 20.00 pCi/L 2
Breckenridge 22.6 mi 8.00 pCi/L 1
Granby 24.3 mi 9.00 pCi/L 4
Edwards 32.5 mi 6.75 pCi/L 4
Idaho Springs 33.1 mi 4.00 pCi/L 1
Leadville 35.8 mi 5.67 pCi/L 3

Summit County Radon Profile

Because of its underlying geology, Summit County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Summit County average 9.17 pCi/L across 6 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Summit County home regardless of zone or a neighbor's results.

Radon FAQ for Silverthorne, CO

What is the average radon level in Silverthorne, CO?
Based on 3 user-submitted tests, the average radon level in Silverthorne is 10.00 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 Silverthorne in?
Silverthorne and the 80498 zip code are in Summit 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 Silverthorne?
Radon mitigation in Silverthorne 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 Silverthorne?
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.