El Mirage, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is El Mirage in?

El Mirage is in Maricopa County, EPA Zone 2.

Q: How much does radon mitigation cost in El Mirage?

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

Maricopa County

EPA Zone 2

Located in Maricopa County within the Phoenix Metro's northwest valley, El Mirage sits on desert alluvium that typically produces low radon levels in the Sonoran Desert region. This growing suburban community features predominantly single-story homes with concrete slab foundations, reflecting both the desert climate and modern Arizona building practices. With testing data currently unavailable for the area, homeowners should consider radon measurements as part of their home maintenance routine.

El Mirage, AZ Radon Mitigation

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

El Mirage, AZ Radon Testing

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

El Mirage Radon Facts

Key details about the radon risk profile for El Mirage and the 85335 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Maricopa County, AZ

Zip Code

85335

Predicted Screening Level

2–4 pCi/L (Zone 2)

El Mirage and the 85335 zip code are located in Maricopa 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 El Mirage, AZ

What EPA Radon Zone is El Mirage in?

El Mirage and the 85335 zip code are in Maricopa 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 El Mirage?

Radon mitigation in El Mirage 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 El Mirage?

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