Call For A Free Quote: 1-800-299-3578 (toll free)

Duncan, OK Radon Levels

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


Duncan, OK Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Stephens County, OK
Zip Code 73533

Positioned in south-central Oklahoma's Stephens County, Duncan lies within EPA Zone 3 for radon classification. While testing data for zip code 73533 remains sparse, the area's sedimentary geology and oil field history typically result in moderate radon levels. Homeowners should test their properties to determine specific conditions given the region's variable geological formations.

Duncan, OK Radon Mitigation

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

Need Radon Mitigation or Testing in Duncan?

  • 100% Free, No-Obligation Quotes
  • Matches You with State-Licensed Stephens County Pros
1-800-299-3578 Toll-free · Mon–Fri 8am–6pm ET

Radon FAQ for Duncan, OK

What EPA Radon Zone is Duncan in?
Duncan and the 73533 zip code are in Stephens County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Duncan?
Radon mitigation in Duncan 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 Duncan?
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 Oklahoma

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

CityAvg User Radon LevelSubmissions
Tulsa 8.14 pCi/L 7
Oklahoma City 7.00 pCi/L 1
Edmond 5.00 pCi/L 1