Shawnee, KS Radon Levels

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

Based on 1 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Shawnee in?

Shawnee is in Johnson County, EPA Zone 1.

Q: How much does radon mitigation cost in Shawnee?

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

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

Shawnee, KS Radon Facts

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

County Johnson County, KS

Zip Code 66203

Avg. User Level 5.00 pCi/L

User Tests 1

Affluent Johnson County suburb in the Kansas City Metro area, Shawnee has recorded an average radon level of 5.0 pCi/L, exceeding the EPA action level. The community's position on limestone bedrock with glacial deposits, combined with predominantly full-basement homes built from the 1960s through today, creates conditions where radon accumulation requires homeowner attention and mitigation.

5.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Shawnee, KS Radon Mitigation

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

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Shawnee, Kansas Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Shawnee, KS	51-99 Years	—	May 2019

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Radon FAQ for Shawnee, KS

What is the average radon level in Shawnee, KS?

Based on 1 user-submitted test, the average radon level in Shawnee is 5.00 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 Shawnee in?

Shawnee and the 66203 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 Shawnee?

Radon mitigation in Shawnee 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 Shawnee?

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