Oblong, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Oblong in?

Oblong is in Crawford County, EPA Zone 2.

Q: How much does radon mitigation cost in Oblong?

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

Crawford County

EPA Zone 2

Positioned in Crawford County within zip code 62449, Oblong sits in southeastern Illinois where Pennsylvanian-era coal measures and underlying limestone create moderate radon potential throughout the region. The area's predominantly rural character features a mix of older farmhouses with stone or block basements alongside newer ranch-style construction. Since local radon testing data remains limited, residents should conduct individual measurements to determine their specific exposure levels.

Oblong, IL Radon Mitigation

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

Oblong, IL Radon Testing

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

Oblong Radon Facts

Key details about the radon risk profile for Oblong and the 62449 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Crawford County, IL

Zip Code

62449

Predicted Screening Level

2–4 pCi/L (Zone 2)

Oblong and the 62449 zip code are located in Crawford County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Oblong, IL

What EPA Radon Zone is Oblong in?

Oblong and the 62449 zip code are in Crawford County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Oblong?

Radon mitigation in Oblong 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 Oblong?

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