Toronto, OH Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 15.00 pCi/L.

Q: What EPA Radon Zone is Toronto in?

Toronto is in Jefferson County, EPA Zone 1.

Q: How much does radon mitigation cost in Toronto?

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

Avg: 15.00 pCi/L

Jefferson County

EPA Zone 1

1 user test

Toronto in Jefferson County shows extremely high radon levels with a recorded reading of 15.0 pCi/L, nearly four times the EPA action level. This Ohio River community (43964) sits on Pennsylvanian-age shale and sandstone formations that can create significant radon gas production and migration. Immediate professional radon mitigation is strongly recommended for homes showing such elevated readings, particularly given the area's older housing stock with stone and block foundations.

15.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Toronto, OH Radon Mitigation

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

Toronto, OH Radon Testing

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

Toronto, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
15 pCi/L	Toronto, OH	100+ Years	Partial Basement	May 2021

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

Toronto Radon Facts

Key details about the radon risk profile for Toronto and the 43964 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Jefferson County, OH

Zip Code

43964

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

15.00 pCi/L

User Tests Submitted

Toronto and the 43964 zip code are located in Jefferson 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 Toronto, OH

What is the average radon level in Toronto, OH?

Based on 1 user-submitted test, the average radon level in Toronto is 15.00 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 Toronto in?

Toronto and the 43964 zip code are in Jefferson 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 Toronto?

Radon mitigation in Toronto 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 Toronto?

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