Cedar City, UT Radon Mitigation and Testing

Q: What is the average radon level in Cedar City, UT?

Based on 4 user-submitted tests, the average radon level is 4.50 pCi/L.

Q: What EPA Radon Zone is Cedar City in?

Cedar City is in Iron County, EPA Zone 2.

Q: How much does radon mitigation cost in Cedar City?

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

Avg: 4.50 pCi/L

Iron County

EPA Zone 2

4 user tests

Cedar City is located in Iron County, Utah. With 4 user-submitted readings averaging 4.50 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 84720 zip code.

4.50

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Cedar City, UT Radon Mitigation

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

Cedar City, UT Radon Testing

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

Cedar City, Utah Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Cedar City, UT	21-50 Years	No Basement/All Slab	Mar 2026
5 pCi/L	Cedar City, UT	—	—	Mar 2026
6 pCi/L	Cedar City, UT	0-20 Years	Full Basement	Feb 2024
4 pCi/L	Cedar City, UT	21-50 Years	Full Basement	Aug 2023

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

Cedar City Radon Facts

Key details about the radon risk profile for Cedar City and the 84720 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Iron County, UT

Zip Code

84720

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.50 pCi/L

User Tests Submitted

Cedar City and the 84720 zip code are located in Iron County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Cedar City, UT

What is the average radon level in Cedar City, UT?

Based on 4 user-submitted tests, the average radon level in Cedar City is 4.50 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 Cedar City in?

Cedar City and the 84720 zip code are in Iron County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Cedar City?

Radon mitigation in Cedar City 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 Cedar City?

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 Utah

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

City	Avg User Radon Level	Submissions
Vernal	8.60 pCi/L	5
Logan	8.00 pCi/L	5
Smithfield	12.00 pCi/L	4
Bountiful	6.75 pCi/L	4
Cedar City	4.50 pCi/L	4
Eagle Mountain	10.67 pCi/L	3
Heber City	5.00 pCi/L	3
Brigham City	9.00 pCi/L	1
Lehi	7.00 pCi/L	1
Saint George	No submissions	0
Sandy	No submissions	0