Doon, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Doon in?

Doon is in Lyon County, EPA Zone 1.

Q: How much does radon mitigation cost in Doon?

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

Lyon County

EPA Zone 1

Positioned in Lyon County along Iowa's northwestern border, Doon sits in EPA Zone 1 where glacial deposits create favorable conditions for radon gas accumulation. Since testing data is limited for zip code 51235, homeowners are encouraged to conduct professional radon testing to determine their specific exposure levels. The area's agricultural setting and geological characteristics make individual testing particularly important for health planning.

Doon, IA Radon Mitigation

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

Doon, IA Radon Testing

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

Doon Radon Facts

Key details about the radon risk profile for Doon and the 51235 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Lyon County, IA

Zip Code

51235

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Doon and the 51235 zip code are located in Lyon 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 Doon, IA

What EPA Radon Zone is Doon in?

Doon and the 51235 zip code are in Lyon 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 Doon?

Radon mitigation in Doon 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 Doon?

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