Clifton, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Clifton in?

Clifton is in Greenlee County, EPA Zone 2.

Q: How much does radon mitigation cost in Clifton?

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

Greenlee County

EPA Zone 2

Clifton in Greenlee County lies in Arizona's mountainous copper mining region where complex igneous and metamorphic geology can create variable radon conditions. Though testing data is currently limited for zip code 85533, the area's high elevation and rocky terrain warrant individual radon assessment. Properties in this historic mining district, particularly older homes built directly into hillsides, should prioritize testing given the potential for radon accumulation in enclosed spaces.

Clifton, AZ Radon Mitigation

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

Clifton, AZ Radon Testing

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

Clifton Radon Facts

Key details about the radon risk profile for Clifton and the 85533 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Greenlee County, AZ

Zip Code

85533

Predicted Screening Level

2–4 pCi/L (Zone 2)

Clifton and the 85533 zip code are located in Greenlee 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 Clifton, AZ

What EPA Radon Zone is Clifton in?

Clifton and the 85533 zip code are in Greenlee 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 Clifton?

Radon mitigation in Clifton 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 Clifton?

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 Arizona

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

City	Avg User Radon Level	Submissions
Prescott	6.79 pCi/L	14
Scottsdale	7.75 pCi/L	12
Phoenix	5.40 pCi/L	10
Mesa	6.40 pCi/L	5
Flagstaff	6.00 pCi/L	5
Tucson	5.25 pCi/L	4
Payson	6.67 pCi/L	3
Glendale	6.50 pCi/L	2
Peoria	3.00 pCi/L	2
Prescott Valley	4.00 pCi/L	1
Gilbert	3.00 pCi/L	1
Tempe	3.00 pCi/L	1