Superior, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Superior in?

Superior is in Pinal County, EPA Zone 2.

Q: How much does radon mitigation cost in Superior?

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

Pinal County

EPA Zone 2

Superior in Pinal County sits within Arizona's mineral-rich desert region, where surrounding copper mining operations and underlying volcanic geology can influence radon levels. Limited testing data for zip codes 85173 and 85273 makes professional radon assessment crucial for residents. The community's location in the Sonoran Desert, combined with its mining history and proximity to the Phoenix Metro area, creates unique geological conditions that warrant individual home testing.

Superior, AZ Radon Mitigation

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

Superior, AZ Radon Testing

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

Superior Radon Facts

Key details about the radon risk profile for Superior and the 85173 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Pinal County, AZ

Zip Code

85173

Predicted Screening Level

2–4 pCi/L (Zone 2)

Superior and the 85173 zip code are located in Pinal 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 Superior, AZ

What EPA Radon Zone is Superior in?

Superior and the 85173 zip code are in Pinal 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 Superior?

Radon mitigation in Superior 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 Superior?

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