Earlham, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Earlham in?

Earlham is in Madison County, EPA Zone 1.

Q: How much does radon mitigation cost in Earlham?

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

Madison County

EPA Zone 1

Part of the Des Moines Metro area in Madison County, Earlham sits on glacial till deposits over limestone bedrock typical of south-central Iowa. Though specific testing data for zip code 50072 is not yet available, the region's geological conditions create high radon potential throughout the area. Homeowners should conduct professional testing, especially critical given Iowa's status as one of the nation's highest radon states and the prevalence of basement foundations in local construction.

Earlham, IA Radon Mitigation

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

Earlham, IA Radon Testing

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

Earlham Radon Facts

Key details about the radon risk profile for Earlham and the 50072 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Madison County, IA

Zip Code

50072

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Earlham and the 50072 zip code are located in Madison 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 Earlham, IA

What EPA Radon Zone is Earlham in?

Earlham and the 50072 zip code are in Madison 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 Earlham?

Radon mitigation in Earlham 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 Earlham?

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