Decorah, IA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 8.00 pCi/L.

Q: What EPA Radon Zone is Decorah in?

Decorah is in Winneshiek County, EPA Zone 1.

Q: How much does radon mitigation cost in Decorah?

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

Avg: 8.00 pCi/L

Winneshiek County

EPA Zone 1

1 user test

Nestled in Winneshiek County in northeastern Iowa's scenic bluff country, Decorah sits in EPA Zone 1 where geological conditions strongly favor radon production. Current testing data shows an average radon level of 8.0 pCi/L, which significantly exceeds the EPA action level of 4.0 pCi/L. The area's karst limestone bedrock and glacial deposits create ideal conditions for radon gas migration into homes throughout zip code 52101.

8.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Decorah, IA Radon Mitigation

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

Decorah, IA Radon Testing

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

Decorah, Iowa Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Decorah, IA	0-20 Years	Full Basement	Feb 2018

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

Decorah Radon Facts

Key details about the radon risk profile for Decorah and the 52101 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Winneshiek County, IA

Zip Code

52101

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

8.00 pCi/L

User Tests Submitted

Decorah and the 52101 zip code are located in Winneshiek 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 Decorah, IA

What is the average radon level in Decorah, IA?

Based on 1 user-submitted test, the average radon level in Decorah is 8.00 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 Decorah in?

Decorah and the 52101 zip code are in Winneshiek 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 Decorah?

Radon mitigation in Decorah 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 Decorah?

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 with the most user-submitted radon test data in the state.

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