Yellowstone National Park, WY Radon Levels

Q: What EPA Radon Zone is Yellowstone National Park in?

Yellowstone National Park is in Park County, EPA Zone 1.

Q: How much does radon mitigation cost in Yellowstone National Park?

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

Check local Yellowstone National Park radon levels and find certified testing and mitigation professionals to keep your home safe

Yellowstone National Park, WY Radon Facts

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

County Park County, WY

Zip Code 82190

Within Park County's spectacular wilderness, Yellowstone National Park encompasses terrain where volcanic bedrock and geothermal activity create unique geological conditions contributing to Wyoming's EPA Zone 1 classification. Limited testing data exists for this protected area, though the underlying geology suggests potential for elevated radon levels. Park service facilities and nearby residential properties should consider professional radon assessment given the complex geological environment of this internationally renowned landscape.

Yellowstone National Park, WY Radon Mitigation

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

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Radon FAQ for Yellowstone National Park, WY

What EPA Radon Zone is Yellowstone National Park in?

Yellowstone National Park and the 82190 zip code are in Park 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 Yellowstone National Park?

Radon mitigation in Yellowstone National Park 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 Yellowstone National Park?

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