Smithton, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Smithton in?

Smithton is in Pettis County, EPA Zone 2.

Q: How much does radon mitigation cost in Smithton?

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

Pettis County

EPA Zone 2

Located in Pettis County within the Columbia Metro area, Smithton sits atop Missouri's characteristic limestone and shale formations that can contribute to elevated radon levels. Testing data for zip code 65350 is currently limited, emphasizing the importance of individual home radon testing. The area's mix of rural properties and small-town residential development, many featuring basement foundations typical of central Missouri construction, benefits from proactive radon monitoring.

Smithton, MO Radon Mitigation

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

Smithton, MO Radon Testing

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

Smithton Radon Facts

Key details about the radon risk profile for Smithton and the 65350 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Pettis County, MO

Zip Code

65350

Predicted Screening Level

2–4 pCi/L (Zone 2)

Smithton and the 65350 zip code are located in Pettis 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 Smithton, MO

What EPA Radon Zone is Smithton in?

Smithton and the 65350 zip code are in Pettis 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 Smithton?

Radon mitigation in Smithton 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 Smithton?

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