Mishawaka, IN Radon Mitigation and Testing

Q: What EPA Radon Zone is Mishawaka in?

Mishawaka is in St Joseph County, EPA Zone 1.

Q: How much does radon mitigation cost in Mishawaka?

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

St Joseph County

EPA Zone 1

Part of the South Bend Metro area in St. Joseph County, Mishawaka sits on glacial till deposits that can facilitate radon gas movement from underlying limestone bedrock. The city's mix of mid-20th century homes with full basements and newer construction presents varying radon risks across different neighborhoods. With testing data limited for zip codes 46544 and 46545, residents should test their homes to establish accurate radon levels for their specific properties.

Mishawaka, IN Radon Mitigation

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

Mishawaka, IN Radon Testing

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

Mishawaka Radon Facts

Key details about the radon risk profile for Mishawaka and the 46544 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

St Joseph County, IN

Zip Code

46544

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Mishawaka and the 46544 zip code are located in St Joseph County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Mishawaka, IN

What EPA Radon Zone is Mishawaka in?

Mishawaka and the 46544 zip code are in St Joseph County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Mishawaka?

Radon mitigation in Mishawaka 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 Mishawaka?

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 Indiana

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

City	Avg User Radon Level	Submissions
Bloomington	8.14 pCi/L	7
Kokomo	7.40 pCi/L	5
Lafayette	15.00 pCi/L	3
Valparaiso	10.00 pCi/L	3
Avon	6.00 pCi/L	3
West Lafayette	10.50 pCi/L	2
Dyer	9.50 pCi/L	2
Columbus	7.50 pCi/L	2
Noblesville	7.00 pCi/L	2
Westfield	7.00 pCi/L	2
Fishers	6.50 pCi/L	2
Corydon	6.00 pCi/L	2
Warsaw	5.50 pCi/L	2
Indianapolis	4.00 pCi/L	2
Newburgh	8.00 pCi/L	1
Logansport	7.00 pCi/L	1
Terre Haute	5.00 pCi/L	1
Muncie	4.00 pCi/L	1
Brownsburg	No submissions	0