Winthrop, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Winthrop in?

Winthrop is in Buchanan County, EPA Zone 1.

Q: How much does radon mitigation cost in Winthrop?

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

Buchanan County

EPA Zone 1

Nestled in Buchanan County in northeastern Iowa, Winthrop sits on thick glacial drift deposits over Paleozoic limestone bedrock that characterizes the region's high radon potential. The small farming community features primarily older residential construction with full basements, typical of Iowa's architectural traditions. Although specific testing data for zip code 50682 is currently limited, homeowners should prioritize radon testing given Iowa's geological conditions and the EPA's strong basement monitoring recommendations.

Winthrop, IA Radon Mitigation

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

Winthrop, IA Radon Testing

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

Winthrop Radon Facts

Key details about the radon risk profile for Winthrop and the 50682 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Buchanan County, IA

Zip Code

50682

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Winthrop and the 50682 zip code are located in Buchanan 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 Winthrop, IA

What EPA Radon Zone is Winthrop in?

Winthrop and the 50682 zip code are in Buchanan 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 Winthrop?

Radon mitigation in Winthrop 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 Winthrop?

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