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Jefferson, IA Radon Levels

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


Jefferson, IA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Greene County, IA
Zip Code 50129

Positioned in Greene County within the Des Moines Metro area, Jefferson sits on glacial deposits that blanket the Iowa prairie landscape. While comprehensive testing data for zip code 50129 is limited, the region's geological characteristics suggest radon testing is advisable. Many homes here feature full basements typical of Iowa construction, providing enclosed below-grade spaces where radon readily accumulates.

Jefferson, IA 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 Jefferson, IA

What EPA Radon Zone is Jefferson in?
Jefferson and the 50129 zip code are in Greene County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Jefferson?
Radon mitigation in Jefferson 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 Jefferson?
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 Iowa

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

CityAvg User Radon LevelSubmissions
Waterloo 8.50 pCi/L 4
Ames 9.67 pCi/L 3
Fairfield 14.00 pCi/L 2
Mount Pleasant 12.00 pCi/L 2
Ottumwa 5.50 pCi/L 2
Iowa City 7.00 pCi/L 1
Muscatine No submissions 0