De Land, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is De Land in?

De Land is in Piatt County, EPA Zone 1.

Q: How much does radon mitigation cost in De Land?

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

Piatt County

EPA Zone 1

Located in Piatt County within the Champaign Metro area, De Land sits on deep glacial moraine deposits over limestone bedrock that contribute to Illinois' significant radon potential. Testing data for zip code 61839 remains limited, though the central Illinois prairie geology typically produces elevated readings. Rural homes and farm properties in this area, many with full basements, should prioritize radon testing given the county's favorable conditions for radon accumulation.

De Land, IL Radon Mitigation

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

De Land, IL Radon Testing

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

De Land Radon Facts

Key details about the radon risk profile for De Land and the 61839 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Piatt County, IL

Zip Code

61839

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

De Land and the 61839 zip code are located in Piatt 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 De Land, IL

What EPA Radon Zone is De Land in?

De Land and the 61839 zip code are in Piatt 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 De Land?

Radon mitigation in De Land 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 De Land?

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 Illinois

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4