Clarence, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Clarence in?

Clarence is in Shelby County, EPA Zone 2.

Q: How much does radon mitigation cost in Clarence?

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

Shelby County

EPA Zone 2

Located in northern Missouri's Shelby County, Clarence sits atop glacial till deposits and underlying limestone formations that can influence radon production across the region. While testing data for zip code 63437 remains limited, the area's geological setting suggests potential for elevated levels. This rural community's mix of older farmhouses and newer homes may exhibit varying radon characteristics depending on construction methods and foundation types.

Clarence, MO Radon Mitigation

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

Clarence, MO Radon Testing

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

Clarence Radon Facts

Key details about the radon risk profile for Clarence and the 63437 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Shelby County, MO

Zip Code

63437

Predicted Screening Level

2–4 pCi/L (Zone 2)

Clarence and the 63437 zip code are located in Shelby 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 Clarence, MO

What EPA Radon Zone is Clarence in?

Clarence and the 63437 zip code are in Shelby 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 Clarence?

Radon mitigation in Clarence 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 Clarence?

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 Missouri

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

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0