Osborn, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Osborn in?

Osborn is in Dekalb County, EPA Zone 2.

Q: How much does radon mitigation cost in Osborn?

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

Found in DeKalb County within Missouri's portion of the Kansas City Metro, Osborn sits where prairie soils over limestone bedrock can create moderate radon conditions. Testing data for ZIP 64474 is currently unavailable, making professional radon assessment important for homeowners. The area's EPA Zone 2 classification and rural housing characteristics, including older farmhouses with partial basements, warrant baseline testing to ensure safe indoor air quality.

Osborn, MO Radon Mitigation

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

Osborn, MO Radon Testing

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

Osborn Radon Facts

Key details about the radon risk profile for Osborn and the 64474 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Dekalb County, MO

Zip Code

64474

Predicted Screening Level

2–4 pCi/L (Zone 2)

Osborn and the 64474 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 Osborn, MO

What EPA Radon Zone is Osborn in?

Osborn and the 64474 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 Osborn?

Radon mitigation in Osborn 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 Osborn?

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