Saint John, IN Radon Levels

Q: What is the average radon level in Saint John, IN?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Saint John in?

Saint John is in Lake County, EPA Zone 2.

Q: How much does radon mitigation cost in Saint John?

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

Check local Saint John radon levels and find certified testing and mitigation professionals to keep your home safe

Saint John, IN Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Lake County, IN

Zip Code 46373

Avg. User Level 4.00 pCi/L

User Tests 1

Positioned in northwest Indiana's Lake County within the Chicago Metro area, Saint John shows an average radon level of 4.0 pCi/L based on limited testing. This reading sits right at the EPA action threshold, indicating the importance of additional testing across the 46373 zip code. The area's glacial till deposits from the Wisconsin glaciation create soil conditions highly favorable for radon gas production, and the community's predominantly single-family homes with full basements provide enclosed spaces where radon can accumulate.

4.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Saint John, IN. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Saint John, IN Radon Mitigation

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Saint John, IN Radon Levels

User-submitted radon test readings from homes in the Saint John area.

Radon Level	City	Home Age	Foundation
4 pCi/L	Saint John, IN	0-20 Years	No Basement/All Slab

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Radon FAQ for Saint John, IN

What is the average radon level in Saint John, IN?

Based on 1 user-submitted test, the average radon level in Saint John is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Saint John in?

Saint John and the 46373 zip code are in Lake 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 Saint John?

Radon mitigation in Saint John 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 Saint John?

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 in Indiana with the most user-submitted radon test data, ranked by number of submissions.

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
Westfield	6.33 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

Saint John, IN Radon Levels

Check local Saint John radon levels and find certified testing and mitigation professionals to keep your home safe

Saint John, IN Radon Facts

Saint John, IN Radon Mitigation

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Saint John, IN Radon Levels

Radon FAQ for Saint John, IN

Most Active Radon Markets in Indiana

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