Columbus, OH Radon Levels

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

Based on 3 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Columbus in?

Columbus is in Franklin County, EPA Zone 1.

Q: How much does radon mitigation cost in Columbus?

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

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

Columbus, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Franklin County, OH

Zip Code 43085

Avg. User Level 6.00 pCi/L

User Tests 3

Based in Delaware County within the Columbus Metro area, this community sits on glacial deposits over Paleozoic sedimentary bedrock typical of central Ohio. Current testing reveals an average radon level of 6.0 pCi/L, which exceeds EPA action guidelines and reflects the region's elevated radon potential. Homeowners in zip code 43240 should strongly consider radon testing and mitigation given these concerning readings.

6.00

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Columbus, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Columbus, OH Radon Mitigation

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Columbus, OH Radon Levels

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

Radon Level	City	Home Age	Foundation
9 pCi/L	Columbus, OH	21-50 Years	Partial Basement
5 pCi/L	Columbus, OH	21-50 Years	Full Basement
4 pCi/L	Columbus, OH	0-20 Years	Full Basement

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

Radon FAQ for Columbus, OH

What is the average radon level in Columbus, OH?

Based on 3 user-submitted tests, the average radon level in Columbus is 6.00 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 Columbus in?

Columbus and the 43085 zip code are in Franklin 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 Columbus?

Radon mitigation in Columbus 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 Columbus?

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

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

Columbus, OH Radon Levels

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

Columbus, OH Radon Facts

Columbus, OH Radon Mitigation

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Columbus, OH Radon Levels

Radon FAQ for Columbus, OH

Most Active Radon Markets in Ohio

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