Nogales, AZ Radon Levels

Q: What EPA Radon Zone is Nogales in?

Nogales is in Santa Cruz County, EPA Zone 2.

Q: How much does radon mitigation cost in Nogales?

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

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

Nogales, AZ Radon Facts

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

County Santa Cruz County, AZ

Zip Code 85621

Limited radon testing data exists for Nogales in Santa Cruz County, making individual home assessments critical for residents of this border community in zip code 85621. Built in Arizona's Sonoran Desert basin where underlying volcanic and sedimentary formations typically produce lower radon levels, the area's older adobe and concrete block construction may still experience variable readings. Testing remains important for establishing baseline levels, especially in homes with enclosed spaces where radon can concentrate.

Nogales, AZ Radon Mitigation

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

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Radon FAQ for Nogales, AZ

What EPA Radon Zone is Nogales in?

Nogales and the 85621 zip code are in Santa Cruz 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 Nogales?

Radon mitigation in Nogales 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 Nogales?

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