Casper, WY Radon Levels

Q: What is the average radon level in Casper, WY?

Based on 6 user-submitted tests, the average radon level is 5.80 pCi/L.

Q: What EPA Radon Zone is Casper in?

Casper is in Natrona County, EPA Zone 1.

Q: How much does radon mitigation cost in Casper?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Casper, WY Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Natrona County, WY

Zip Code 82601

Avg. User Level 5.80 pCi/L

User Tests 6

Wyoming's second-largest city, Casper sits in Natrona County where uranium-bearing formations in the Powder River Basin contribute to significant radon potential. Based on 5 residential tests across zip codes 82601, 82604, and 82609, the city reports an average radon level of 5.6 pCi/L, exceeding the EPA action threshold of 4.0 pCi/L.

5.80

pCi/L average

Above EPA Action Level

Based on 6 user-submitted radon tests for homes in Casper, WY. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Casper, WY Radon Mitigation

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Casper, WY Radon Levels

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

Radon Level	City	Home Age	Foundation
7 pCi/L	Casper, WY	51-99 Years	Full Basement
6 pCi/L	Casper, WY	51-99 Years	No Basement/All Slab
6 pCi/L	Casper, WY	51-99 Years	Full Basement
4 pCi/L	Casper, WY	0-20 Years	Full Basement
4 pCi/L	Casper, WY	51-99 Years	No Basement/All Crawl Space

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

Radon FAQ for Casper, WY

What is the average radon level in Casper, WY?

Based on 6 user-submitted tests, the average radon level in Casper is 5.80 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 Casper in?

Casper and the 82601 zip code are in Natrona 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 Casper?

Radon mitigation in Casper 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 Casper?

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 Wyoming

Cities in Wyoming with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Lander	8.18 pCi/L	11
Rock Springs	5.22 pCi/L	9
Casper	5.83 pCi/L	6
Laramie	5.83 pCi/L	6
Green River	12.60 pCi/L	5
Riverton	8.40 pCi/L	5
Sheridan	10.75 pCi/L	4
Thayne	9.25 pCi/L	4
Cody	5.75 pCi/L	4
Cheyenne	5.00 pCi/L	4

Casper, WY Radon Levels

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

Casper, WY Radon Facts

Casper, WY Radon Mitigation

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Casper, WY Radon Levels

Radon FAQ for Casper, WY

Most Active Radon Markets in Wyoming

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