Logan, UT Radon Mitigation and Testing

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

Based on 6 user-submitted tests, the average radon level is 8.00 pCi/L.

Q: What EPA Radon Zone is Logan in?

Logan is in Cache County, EPA Zone 2.

Q: How much does radon mitigation cost in Logan?

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

Avg: 8.00 pCi/L

Cache County

EPA Zone 2

6 user tests

Cache Valley's largest city shows concerning radon patterns, with Cache County homes averaging 8.0 pCi/L across multiple zip codes (84321, 84341). Based on five local tests ranging from 5.0 to 11.0 pCi/L, most readings exceed the EPA action level significantly. The valley's geological structure, with alluvial deposits over fractured bedrock, creates ideal conditions for radon accumulation in this EPA Zone 2 region.

8.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Logan, UT Radon Mitigation

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

Logan, UT Radon Testing

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

Logan, Utah Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Logan, UT	—	—	Oct 2023
8 pCi/L	Logan, UT	0-20 Years	Full Basement	Dec 2021
11 pCi/L	Logan, UT	0-20 Years	Full Basement	Apr 2021
11 pCi/L	Logan, UT	21-50 Years	Full Basement	Mar 2017

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

Logan Radon Facts

Key details about the radon risk profile for Logan and the 84321 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Cache County, UT

Zip Code

84321

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

8.00 pCi/L

User Tests Submitted

Logan and the 84321 zip code are located in Cache 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 Logan, UT

What is the average radon level in Logan, UT?

Based on 6 user-submitted tests, the average radon level in Logan is 8.00 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 Logan in?

Logan and the 84321 zip code are in Cache 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 Logan?

Radon mitigation in Logan 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 Logan?

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