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Sparks, NV Radon Levels

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


Sparks, NV Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Washoe County, NV
Zip Code 89431

Sparks spans multiple zip codes in Washoe County, situated in the Truckee Meadows where alluvial deposits meet the Sierra Nevada foothills. The city's diverse housing stock ranges from mid-century ranch homes to newer subdivisions, most built on concrete slab or basement foundations. Limited radon testing data across the 89431, 89434, 89436, and 89441 areas underscores the need for individual property testing to understand local radon conditions.

Sparks, NV 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 Sparks, NV

What EPA Radon Zone is Sparks in?
Sparks and the 89431 zip code are in Washoe 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 Sparks?
Radon mitigation in Sparks 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 Sparks?
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 Nevada

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

CityAvg User Radon LevelSubmissions
Henderson 9.70 pCi/L 10
Reno 5.17 pCi/L 6
Carson City 6.75 pCi/L 4
Gardnerville 6.33 pCi/L 3
Spring Creek 3.50 pCi/L 2
Las Vegas 3.00 pCi/L 1