Renwick, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Renwick in?

Renwick is in Humboldt County, EPA Zone 1.

Q: How much does radon mitigation cost in Renwick?

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

Humboldt County

EPA Zone 1

Renwick sits in Humboldt County within Iowa's north-central prairie region, where glacial till deposits over limestone bedrock create conditions highly favorable for radon production. The community (56577) falls within EPA Zone 1, reflecting the highest predicted radon potential, though specific local testing data remains limited. Iowa's geology consistently produces elevated radon levels statewide, making testing essential for all homes in this rural farming area.

Renwick, IA Radon Mitigation

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

Renwick, IA Radon Testing

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

Renwick Radon Facts

Key details about the radon risk profile for Renwick and the 50577 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Humboldt County, IA

Zip Code

50577

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Renwick and the 50577 zip code are located in Humboldt 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 Renwick, IA

What EPA Radon Zone is Renwick in?

Renwick and the 50577 zip code are in Humboldt 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 Renwick?

Radon mitigation in Renwick 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 Renwick?

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