Glendale, AZ Radon Levels

Q: What is the average radon level in Glendale, AZ?

Based on 2 user-submitted tests, the average radon level is 6.50 pCi/L.

Q: What EPA Radon Zone is Glendale in?

Glendale is in Maricopa County, EPA Zone 2.

Q: How much does radon mitigation cost in Glendale?

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

Check local Glendale radon levels and find certified testing and mitigation professionals to keep your home safe

Glendale, AZ Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Maricopa County, AZ

Zip Code 85301

Avg. User Level 6.50 pCi/L

User Tests 2

Spanning multiple zip codes in Maricopa County within the Phoenix Metro area, Glendale shows an average radon level of 6.5 pCi/L based on available testing data, which exceeds the EPA action level of 4.0 pCi/L. The area's desert soils and underlying granite bedrock can contribute to elevated radon levels, particularly in homes with enclosed lower-level spaces or slab-on-grade foundations with cracks. Homeowners across all Glendale zip codes should test their homes and consider mitigation if levels exceed 4.0 pCi/L.

6.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Glendale, AZ. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Glendale, AZ Radon Mitigation

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Glendale, AZ Radon Levels

User-submitted radon test readings from homes in the Glendale area.

Radon Level	City	Home Age	Foundation
5 pCi/L	Glendale, AZ	0-20 Years	No Basement/All Slab
8 pCi/L	Glendale, AZ	21-50 Years	Partial Basement

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Radon FAQ for Glendale, AZ

What is the average radon level in Glendale, AZ?

Based on 2 user-submitted tests, the average radon level in Glendale is 6.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Glendale in?

Glendale and the 85301 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 Glendale?

Radon mitigation in Glendale 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 Glendale?

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 in Arizona with the most user-submitted radon test data, ranked by number of submissions.

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

Glendale, AZ Radon Levels

Check local Glendale radon levels and find certified testing and mitigation professionals to keep your home safe

Glendale, AZ Radon Facts

Glendale, AZ Radon Mitigation

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Glendale, AZ Radon Levels

Radon FAQ for Glendale, AZ

Most Active Radon Markets in Arizona

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