Call For A Free Quote: 1-800-299-3578 (toll free) | 316-854-1058 (local)

Colby, KS Radon Levels

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


Colby, KS Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Thomas County, KS
Zip Code 67701

Established in northwest Kansas's Thomas County, Colby sits atop High Plains geology in EPA Zone 1 where Cretaceous and Tertiary formations can produce elevated radon levels. This agricultural hub around zip code 67701 features primarily single-family homes and farm properties with varied foundation types. Given the absence of comprehensive testing data and Kansas's elevated radon potential, residents should prioritize professional radon testing to establish whether mitigation measures might be beneficial.

Colby, KS 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 Colby?

  • 100% Free, No-Obligation Quotes
  • Matches You with State-Licensed Thomas County Pros
1-800-299-3578 316-854-1058 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon FAQ for Colby, KS

What EPA Radon Zone is Colby in?
Colby and the 67701 zip code are in Thomas 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 Colby?
Radon mitigation in Colby 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 Colby?
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.

CityAvg User Radon LevelSubmissions
Topeka 6.00 pCi/L 1
Overland Park No submissions 0