Sheridan, WY Radon Mitigation and Testing

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

Based on 4 user-submitted tests, the average radon level is 10.80 pCi/L.

Q: What EPA Radon Zone is Sheridan in?

Sheridan is in Sheridan County, EPA Zone 1.

Q: How much does radon mitigation cost in Sheridan?

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

Avg: 10.80 pCi/L

Sheridan County

EPA Zone 1

4 user tests

Sheridan is located in Sheridan County, Wyoming. With 4 user-submitted readings averaging 10.80 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 82801 zip code.

10.80

pCi/L average

Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Sheridan, WY. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Sheridan, WY Radon Mitigation

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

Sheridan, WY Radon Testing

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

Sheridan, Wyoming Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Sheridan, WY	0-20 Years	No Basement/All Crawl Space	Feb 2026
5 pCi/L	Sheridan, WY	21-50 Years	Full Basement	Feb 2023
13 pCi/L	Sheridan, WY	0-20 Years	No Basement/All Crawl Space	Feb 2016

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

Sheridan Radon Facts

Key details about the radon risk profile for Sheridan and the 82801 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Sheridan County, WY

Zip Code

82801

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

10.80 pCi/L

User Tests Submitted

Sheridan and the 82801 zip code are located in Sheridan 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 Sheridan, WY

What is the average radon level in Sheridan, WY?

Based on 4 user-submitted tests, the average radon level in Sheridan is 10.80 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 Sheridan in?

Sheridan and the 82801 zip code are in Sheridan 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 Sheridan?

Radon mitigation in Sheridan 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 Sheridan?

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

City	Avg User Radon Level	Submissions
Lander	8.18 pCi/L	11
Rock Springs	5.22 pCi/L	9
Laramie	5.83 pCi/L	6
Green River	12.60 pCi/L	5
Riverton	8.40 pCi/L	5
Casper	5.60 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
Thermopolis	5.00 pCi/L	3
Gillette	20.00 pCi/L	1
Jackson	No submissions	0