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Morrison, CO Radon Levels

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


Morrison, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Jefferson County, CO
Zip Code 80465
Avg. User Level 5.00 pCi/L
User Tests 3

Nestled in the foothills west of Denver, Morrison in Jefferson County sits where Precambrian granite and sedimentary formations create variable radon conditions. Local testing data shows an average radon level of 5.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Homes in zip code 80465 should prioritize radon testing, especially those built into hillsides or with walkout basements common in this scenic mountain community.

5.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Morrison, CO Radon Mitigation

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

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Morrison, CO Radon Levels

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

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

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

Radon Readings Near Morrison, CO

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

CityDistanceAvg User LevelReadings
Littleton 8.8 mi 6.00 pCi/L 2
Evergreen 9.0 mi 10.00 pCi/L 1
Conifer 9.9 mi 9.00 pCi/L 3
Englewood 12.6 mi 11.00 pCi/L 2
Denver 13.4 mi 6.22 pCi/L 9
Arvada 15.3 mi 5.00 pCi/L 2
Bailey 19.4 mi 14.33 pCi/L 3
Commerce City 20.3 mi 9.00 pCi/L 1

Jefferson County Radon Profile

Jefferson 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 6 cities in Jefferson County average 7.50 pCi/L across 12 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 Jefferson County to test, as levels can differ between neighboring homes.

Radon FAQ for Morrison, CO

What is the average radon level in Morrison, CO?
Based on 3 user-submitted tests, the average radon level in Morrison is 5.00 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 Morrison in?
Morrison and the 80465 zip code are in Jefferson 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 Morrison?
Radon mitigation in Morrison 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 Morrison?
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.