Pima, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Pima in?

Pima is in Graham County, EPA Zone 2.

Q: How much does radon mitigation cost in Pima?

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

Graham County

EPA Zone 2

Set in Graham County's high desert terrain, Pima occupies ZIP 85543 in southeastern Arizona's EPA Zone 2. Limited local radon testing data makes professional evaluation particularly important for this rural community. The area's desert soils over varied bedrock formations can produce unexpected radon concentrations, especially in homes with below-grade spaces or concrete slab foundations.

Pima, AZ Radon Mitigation

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

Pima, AZ Radon Testing

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

Pima Radon Facts

Key details about the radon risk profile for Pima and the 85543 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Graham County, AZ

Zip Code

85543

Predicted Screening Level

2–4 pCi/L (Zone 2)

Pima and the 85543 zip code are located in Graham 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 Pima, AZ

What EPA Radon Zone is Pima in?

Pima and the 85543 zip code are in Graham 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 Pima?

Radon mitigation in Pima 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 Pima?

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