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Crested Butte, CO Radon Mitigation and Testing

Avg: 8.60 pCi/L
Gunnison County
EPA Zone 1
9 user tests

Crested Butte is located in Gunnison County, Colorado. With 9 user-submitted readings averaging 8.60 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 81224 zip code.

8.60
pCi/L average
Above EPA Action Level

Based on 9 user-submitted radon tests for homes in Crested Butte, CO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Crested Butte, CO Radon Mitigation

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

Crested Butte, CO Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Crested Butte, Colorado Radon Levels

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

Radon LevelCityHome AgeFoundationSubmitted
4 pCi/L Crested Butte, CO 21-50 Years No Basement/All Crawl Space Oct 2025
6 pCi/L Crested Butte, CO 21-50 Years No Basement/All Crawl Space Aug 2024
5 pCi/L Crested Butte, CO 0-20 Years No Basement/All Slab Aug 2024
8 pCi/L Crested Butte, CO 21-50 Years No Basement/All Crawl Space Dec 2019
9 pCi/L Crested Butte, CO 0-20 Years No Basement/All Crawl Space Feb 2019

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

Crested Butte Radon Facts

Key details about the radon risk profile for Crested Butte and the 81224 zip code area.

EPA Radon Zone
Zone 1 — High Risk
County
Gunnison County, CO
Zip Code
81224
Predicted Screening Level
> 4.0 pCi/L (Zone 1)
Avg. User Submitted Level
8.60 pCi/L
User Tests Submitted
9

Crested Butte and the 81224 zip code are located in Gunnison County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Crested Butte, CO

What is the average radon level in Crested Butte, CO?
Based on 9 user-submitted tests, the average radon level in Crested Butte is 8.60 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 Crested Butte in?
Crested Butte and the 81224 zip code are in Gunnison 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 Crested Butte?
Radon mitigation in Crested Butte 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 Crested Butte?
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 Colorado

Cities with the most user-submitted radon test data in the state.

CityAvg User Radon LevelSubmissions
Fairplay 12.00 pCi/L 9
Crested Butte 8.56 pCi/L 9
Denver 6.22 pCi/L 9
Montrose 9.25 pCi/L 8
Gunnison 7.38 pCi/L 8
Buena Vista 12.57 pCi/L 7
Pueblo 10.67 pCi/L 6
Grand Junction 8.17 pCi/L 6
Bayfield 6.00 pCi/L 6
Canon City 10.80 pCi/L 5
Aurora 7.40 pCi/L 5
Windsor 7.00 pCi/L 5
Telluride 6.80 pCi/L 5
Parker 5.40 pCi/L 5
Salida 15.50 pCi/L 4
Johnstown 9.50 pCi/L 4
Granby 9.00 pCi/L 4
Longmont 8.00 pCi/L 4
Edwards 6.75 pCi/L 4
Mancos 6.00 pCi/L 4