Stewartsville, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Stewartsville in?

Stewartsville is in Dekalb County, EPA Zone 2.

Q: How much does radon mitigation cost in Stewartsville?

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

Dekalb County

EPA Zone 2

This small community in northwestern Missouri's Dekalb County lies within the Kansas City Metro area, where Pennsylvanian limestone and shale create moderate radon potential. Testing data for zip code 64490 is currently limited, making professional radon assessment important for residents. Missouri's prairie region can produce variable radon levels, and professional testing is recommended for all homes regardless of age or foundation type.

Stewartsville, MO Radon Mitigation

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

Stewartsville, MO Radon Testing

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

Stewartsville Radon Facts

Key details about the radon risk profile for Stewartsville and the 64490 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Dekalb County, MO

Zip Code

64490

Predicted Screening Level

2–4 pCi/L (Zone 2)

Stewartsville and the 64490 zip code are located in Dekalb 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 Stewartsville, MO

What EPA Radon Zone is Stewartsville in?

Stewartsville and the 64490 zip code are in Dekalb 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 Stewartsville?

Radon mitigation in Stewartsville 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 Stewartsville?

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