Walnut, KS Radon Mitigation and Testing

Q: What EPA Radon Zone is Walnut in?

Walnut is in Crawford County, EPA Zone 2.

Q: How much does radon mitigation cost in Walnut?

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

Crawford County

EPA Zone 2

Found in Crawford County in southeastern Kansas (ZIP 66780), Walnut sits within an area of Pennsylvanian-age limestone and shale formations typical of the region. Though specific radon testing data is not currently available for this community, the underlying geology suggests potential for variable radon levels. Residents should consider conducting radon tests, particularly in homes with basements or those built over limestone formations common throughout Crawford County.

Walnut, KS Radon Mitigation

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

Walnut, KS Radon Testing

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

Walnut Radon Facts

Key details about the radon risk profile for Walnut and the 66780 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Crawford County, KS

Zip Code

66780

Predicted Screening Level

2–4 pCi/L (Zone 2)

Walnut and the 66780 zip code are located in Crawford County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Walnut, KS

What EPA Radon Zone is Walnut in?

Walnut and the 66780 zip code are in Crawford 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 Walnut?

Radon mitigation in Walnut 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 Walnut?

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