Bellefontaine, OH Radon Mitigation and Testing

Q: What is the average radon level in Bellefontaine, OH?

Based on 2 user-submitted tests, the average radon level is 16.50 pCi/L.

Q: What EPA Radon Zone is Bellefontaine in?

Bellefontaine is in Logan County, EPA Zone 1.

Q: How much does radon mitigation cost in Bellefontaine?

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

Avg: 16.50 pCi/L

Logan County

EPA Zone 1

2 user tests

Bellefontaine is located in Logan County, Ohio. With 2 user-submitted readings averaging 16.50 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 43311 zip code.

16.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Bellefontaine, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Bellefontaine, OH Radon Mitigation

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

Bellefontaine, OH Radon Testing

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

Bellefontaine, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Bellefontaine, OH	21-50 Years	Full Basement	Nov 2025
13 pCi/L	Bellefontaine, OH	51-99 Years	Full Basement	May 2021

Have a radon test result for Bellefontaine? Submit your reading to help other homeowners.

Bellefontaine Radon Facts

Key details about the radon risk profile for Bellefontaine and the 43311 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Logan County, OH

Zip Code

43311

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

16.50 pCi/L

User Tests Submitted

Bellefontaine and the 43311 zip code are located in Logan 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 Bellefontaine, OH

What is the average radon level in Bellefontaine, OH?

Based on 2 user-submitted tests, the average radon level in Bellefontaine is 16.50 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 Bellefontaine in?

Bellefontaine and the 43311 zip code are in Logan 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 Bellefontaine?

Radon mitigation in Bellefontaine 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 Bellefontaine?

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 Ohio

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

City	Avg User Radon Level	Submissions
Marietta	8.00 pCi/L	5
Cincinnati	5.20 pCi/L	5
Hilliard	11.75 pCi/L	4
Wilmington	5.25 pCi/L	4
Newark	15.00 pCi/L	3
Athens	11.33 pCi/L	3
Findlay	10.33 pCi/L	3
Perrysburg	9.67 pCi/L	3
Powell	8.33 pCi/L	3
Columbus	6.00 pCi/L	3
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1