Manhattan, KS Radon Mitigation and Testing

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.

Riley County

EPA Zone 1

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.

Manhattan, KS Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Manhattan Radon Facts

Key details about the radon risk profile for Manhattan and the 66502 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Riley County, KS

Zip Code

66502

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Manhattan and the 66502 zip code are located in Riley County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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 with the most user-submitted radon test data in the state.

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