Cincinnati, OH Radon Mitigation and Testing

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

Based on 4 user-submitted tests, the average radon level is 5.30 pCi/L.

Q: What EPA Radon Zone is Cincinnati in?

Cincinnati is in Hamilton County, EPA Zone 1.

Q: How much does radon mitigation cost in Cincinnati?

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

Avg: 5.30 pCi/L

Hamilton County

EPA Zone 1

4 user tests

Cincinnati is located in Hamilton County, Ohio. With 4 user-submitted readings averaging 5.30 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 45202 zip code.

5.30

pCi/L average

Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Cincinnati, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Cincinnati, OH Radon Mitigation

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

Cincinnati, OH Radon Testing

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

Cincinnati, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Cincinnati, OH	21-50 Years	Full Basement	Dec 2020
4 pCi/L	Cincinnati, OH	51-99 Years	Full Basement	Oct 2020
8 pCi/L	Cincinnati, OH	0-20 Years	Full Basement	Jan 2020
5 pCi/L	Cincinnati, OH	21-50 Years	Partial Basement	Apr 2018
5 pCi/L	Cincinnati, OH	0-20 Years	Full Basement	Dec 2016

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

Cincinnati Radon Facts

Key details about the radon risk profile for Cincinnati and the 45202 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hamilton County, OH

Zip Code

45202

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.30 pCi/L

User Tests Submitted

Cincinnati and the 45202 zip code are located in Hamilton 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 Cincinnati, OH

What is the average radon level in Cincinnati, OH?

Based on 4 user-submitted tests, the average radon level in Cincinnati is 5.30 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 Cincinnati in?

Cincinnati and the 45202 zip code are in Hamilton 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 Cincinnati?

Radon mitigation in Cincinnati 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 Cincinnati?

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