Rock Springs, WY Radon Mitigation and Testing

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

Based on 10 user-submitted tests, the average radon level is 5.10 pCi/L.

Q: What EPA Radon Zone is Rock Springs in?

Rock Springs is in Sweetwater County, EPA Zone 1.

Q: How much does radon mitigation cost in Rock Springs?

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

Avg: 5.10 pCi/L

Sweetwater County

EPA Zone 1

10 user tests

Rock Springs is located in Sweetwater County, Wyoming. With 10 user-submitted readings averaging 5.10 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 82901 zip code.

5.10

pCi/L average

Above EPA Action Level

Based on 10 user-submitted radon tests for homes in Rock Springs, WY. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Rock Springs, WY Radon Mitigation

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

Rock Springs, WY Radon Testing

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

Rock Springs, Wyoming Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Rock Springs, WY	21-50 Years	Full Basement	Jan 2026
9 pCi/L	Rock Springs, WY	0-20 Years	Full Basement	Oct 2022
3 pCi/L	Rock Springs, WY	21-50 Years	Full Basement	Jan 2021
6 pCi/L	ROCK SPRINGS, WY	0-20 Years	Full Basement	Mar 2017
2 pCi/L	Rock Springs, WY	21-50 Years	Partial Basement	Feb 2017

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

Rock Springs Radon Facts

Key details about the radon risk profile for Rock Springs and the 82901 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Sweetwater County, WY

Zip Code

82901

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.10 pCi/L

User Tests Submitted

Rock Springs and the 82901 zip code are located in Sweetwater 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 Rock Springs, WY

What is the average radon level in Rock Springs, WY?

Based on 10 user-submitted tests, the average radon level in Rock Springs is 5.10 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 Rock Springs in?

Rock Springs and the 82901 zip code are in Sweetwater 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 Rock Springs?

Radon mitigation in Rock Springs 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 Rock Springs?

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