Springfield, OH Radon Levels

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

Based on 3 user-submitted tests, the average radon level is 10.30 pCi/L.

Q: What EPA Radon Zone is Springfield in?

Springfield is in Clark County, EPA Zone 1.

Q: How much does radon mitigation cost in Springfield?

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

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

Springfield, OH Radon Facts

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

County Clark County, OH

Zip Code 45502

Avg. User Level 10.30 pCi/L

User Tests 3

Home to Clark County's county seat, Springfield demonstrates concerning radon conditions with an average level of 10.33 pCi/L across multiple zip codesâ€”well above the EPA action threshold. The area's glacial till deposits over limestone bedrock create ideal conditions for radon accumulation in the region's mix of historic and post-war housing stock. Given these elevated readings, radon testing and mitigation should be a priority for all Springfield homeowners.

10.30

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Springfield, OH Radon Mitigation

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Springfield, OH Radon Levels

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

Radon Level	City	Home Age	Foundation
8 pCi/L	Springfield, OH	51-99 Years	Full Basement
15 pCi/L	Springfield, OH	51-99 Years	No Basement/All Slab
8 pCi/L	Springfield, OH	0-20 Years	Full Basement

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

Radon FAQ for Springfield, OH

What is the average radon level in Springfield, OH?

Based on 3 user-submitted tests, the average radon level in Springfield is 10.30 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 Springfield in?

Springfield and the 45502 zip code are in Clark 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 Springfield?

Radon mitigation in Springfield 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 Springfield?

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

Springfield, OH Radon Levels

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

Springfield, OH Radon Facts

Springfield, OH Radon Mitigation

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Springfield, OH Radon Levels

Radon FAQ for Springfield, OH

Most Active Radon Markets in Ohio

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