Denison, IA Radon Levels

Q: What is the average radon level in Denison, IA?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Denison in?

Denison is in Crawford County, EPA Zone 1.

Q: How much does radon mitigation cost in Denison?

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

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

Denison, IA Radon Facts

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

County Crawford County, IA

Zip Code 51442

Avg. User Level 9.00 pCi/L

User Tests 1

Situated in Crawford County within Iowa's glacial till region, Denison shows an average radon level of 9.0 pCi/L, significantly exceeding EPA action guidelines. This single test result from zip code 51442 reflects Iowa's typically elevated radon potential due to uranium-rich glacial deposits over limestone bedrock. Given these high readings and Iowa's geology, all area homeowners should test and likely install mitigation systems.

9.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Denison, IA Radon Mitigation

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Denison, IA Radon Levels

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

Radon Level	City	Home Age	Foundation
9 pCi/L	Denison, IA	21-50 Years	Full Basement

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Radon FAQ for Denison, IA

What is the average radon level in Denison, IA?

Based on 1 user-submitted test, the average radon level in Denison is 9.00 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 Denison in?

Denison and the 51442 zip code are in Crawford 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 Denison?

Radon mitigation in Denison 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 Denison?

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 Iowa

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

City	Avg User Radon Level	Submissions
Waterloo	8.50 pCi/L	4
Ames	9.67 pCi/L	3
Fairfield	14.00 pCi/L	2
Mount Pleasant	12.00 pCi/L	2
Ottumwa	5.50 pCi/L	2
Iowa City	7.00 pCi/L	1
Muscatine	No submissions	0

Denison, IA Radon Levels

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

Denison, IA Radon Facts

Denison, IA Radon Mitigation

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Denison, IA Radon Levels

Radon FAQ for Denison, IA

Most Active Radon Markets in Iowa

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