Sonoita, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Sonoita in?

Sonoita is in Pima County, EPA Zone 2.

Q: How much does radon mitigation cost in Sonoita?

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

Pima County

EPA Zone 2

High-desert Sonoita in Pima County sits at elevation southeast of Tucson where volcanic and granitic rocks can occasionally produce moderate radon levels. Testing data for this wine country community remains limited, making individual property assessment important for residents. Despite Arizona's generally lower radon risk, the area's higher elevation and varied geology warrant homeowner testing, particularly in homes with below-grade spaces.

Sonoita, AZ Radon Mitigation

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

Sonoita, AZ Radon Testing

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

Sonoita Radon Facts

Key details about the radon risk profile for Sonoita and the 85637 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Pima County, AZ

Zip Code

85637

Predicted Screening Level

2–4 pCi/L (Zone 2)

Sonoita and the 85637 zip code are located in Pima 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 Sonoita, AZ

What EPA Radon Zone is Sonoita in?

Sonoita and the 85637 zip code are in Pima 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 Sonoita?

Radon mitigation in Sonoita 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 Sonoita?

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