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Leadville, CO Radon Levels

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


Leadville, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Lake County, CO
Zip Code 80461
Avg. User Level 5.70 pCi/L
User Tests 3

America's highest incorporated city, Leadville sits at 10,152 feet elevation in Lake County among Colorado's Rocky Mountains. Recent testing shows an average radon level of 5.67 pCi/L, exceeding the EPA action threshold of 4.0 pCi/L. The combination of high elevation, granite bedrock, and historic mining activity creates conditions conducive to radon accumulation, making mitigation systems essential for many homes in zip code 80461.

5.70
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Leadville, CO Radon Mitigation

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

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Leadville, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
7 pCi/L Leadville, CO 21-50 Years Full Basement
5 pCi/L Leadville, CO 21-50 Years No Basement/All Crawl Space

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

Radon Readings Near Leadville, CO

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

CityDistanceAvg User LevelReadings
Fairplay 16.3 mi 12.00 pCi/L 9
Breckenridge 21.6 mi 8.00 pCi/L 1
Vail 27.8 mi 6.00 pCi/L 1
Aspen 28.2 mi 4.00 pCi/L 1
Dillon 29.6 mi 8.50 pCi/L 2
Buena Vista 29.6 mi 12.57 pCi/L 7
Edwards 32.4 mi 6.75 pCi/L 4
Silverthorne 35.8 mi 10.00 pCi/L 3

Lake County Radon Profile

Because of its underlying geology, Lake 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 1 city in Lake County average 5.67 pCi/L across 3 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 Lake County home regardless of zone or a neighbor's results.

Radon FAQ for Leadville, CO

What is the average radon level in Leadville, CO?
Based on 3 user-submitted tests, the average radon level in Leadville is 5.70 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 Leadville in?
Leadville and the 80461 zip code are in Lake 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 Leadville?
Radon mitigation in Leadville 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 Leadville?
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.