Ionia, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Ionia in?

Ionia is in Benton County, EPA Zone 2.

Q: How much does radon mitigation cost in Ionia?

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

Benton County

EPA Zone 2

Located in Benton County along Missouri's central western border, Ionia sits in an area of Pennsylvanian limestone and shale formations. While comprehensive radon testing data is currently limited for the 65335 zip code area, homeowners should prioritize testing given Missouri's variable geological conditions.

Ionia, MO Radon Mitigation

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

Ionia, MO Radon Testing

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

Ionia Radon Facts

Key details about the radon risk profile for Ionia and the 65335 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Benton County, MO

Zip Code

65335

Predicted Screening Level

2–4 pCi/L (Zone 2)

Ionia and the 65335 zip code are located in Benton 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 Ionia, MO

What EPA Radon Zone is Ionia in?

Ionia and the 65335 zip code are in Benton 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 Ionia?

Radon mitigation in Ionia 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 Ionia?

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