Manhattan, KS Radon Levels

Q: What EPA Radon Zone is Manhattan in?

Manhattan is in Riley County, EPA Zone 1.

Q: How much does radon mitigation cost in Manhattan?

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

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

Manhattan, KS Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Riley County, KS

Zip Code 66502

Home to Kansas State University in Riley County, Manhattan sits within the Topeka Metro area atop Flint Hills limestone formations that can contribute to elevated radon levels in residential properties. The college town features a diverse housing mix including historic homes near campus, modern subdivisions, and student housing, many with basements or lower-level areas where radon can accumulate. Testing data remains limited for the 66502 zip code, making professional radon measurement important for both homeowners and property managers.

Manhattan, KS 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 Manhattan, KS

What EPA Radon Zone is Manhattan in?

Manhattan and the 66502 zip code are in Riley 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 Manhattan?

Radon mitigation in Manhattan 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 Manhattan?

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 Kansas

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

City	Avg User Radon Level	Submissions
Topeka	6.00 pCi/L	1
Overland Park	No submissions	0