Olathe, KS Radon Levels

Q: What is the average radon level in Olathe, KS?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Olathe in?

Olathe is in Johnson County, EPA Zone 1.

Q: How much does radon mitigation cost in Olathe?

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

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

Olathe, KS Radon Facts

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

County Johnson County, KS

Zip Code 66061

Avg. User Level 4.00 pCi/L

User Tests 1

Part of the Kansas City metropolitan area in Johnson County, Olathe features predominantly newer suburban housing developments built over limestone and shale bedrock. Testing data indicates an average radon level of 4.0 pCi/L, right at the EPA action threshold. With the area's Zone 1 classification and typical full-basement construction in zip codes 66061-66062, regular radon testing remains essential for homeowner safety.

4.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Olathe, KS. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Olathe, KS Radon Mitigation

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

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Olathe, Kansas Radon Levels

User-submitted radon test readings from homes in the Olathe area.

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Olathe, KS	0-20 Years	Partial Basement	May 2022

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Radon FAQ for Olathe, KS

What is the average radon level in Olathe, KS?

Based on 1 user-submitted test, the average radon level in Olathe is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Olathe in?

Olathe and the 66061 zip code are in Johnson 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 Olathe?

Radon mitigation in Olathe 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 Olathe?

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