Charles City, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Charles City in?

Charles City is in Floyd County, EPA Zone 1.

Q: How much does radon mitigation cost in Charles City?

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

Floyd County

EPA Zone 1

Located in north-central Iowa's Floyd County, Charles City sits atop the state's characteristic glacial till deposits over limestone bedrock that contribute to Iowa's reputation for elevated radon levels. While specific local testing data is currently unavailable, the area's geological conditions and typical Iowa housing with full basements create environments where radon can accumulate. Homeowners should prioritize testing given the state's high radon potential.

Charles City, IA Radon Mitigation

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

Charles City, IA Radon Testing

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

Charles City Radon Facts

Key details about the radon risk profile for Charles City and the 50616 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Floyd County, IA

Zip Code

50616

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Charles City and the 50616 zip code are located in Floyd 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 Charles City, IA

What EPA Radon Zone is Charles City in?

Charles City and the 50616 zip code are in Floyd 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 Charles City?

Radon mitigation in Charles City 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 Charles City?

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