Monroe Center, IL Radon Levels

Q: What EPA Radon Zone is Monroe Center in?

Monroe Center is in Ogle County, EPA Zone 1.

Q: How much does radon mitigation cost in Monroe Center?

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

Check local Monroe Center radon levels and find certified testing and mitigation professionals to keep your home safe

Monroe Center, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Ogle County, IL

Zip Code 61052

Situated in Ogle County (61052) northwest of the Chicago metro region, Monroe Center lies on glacial till deposits that characterize much of northern Illinois's radon-producing geology. While testing data is currently limited for this rural community, the underlying limestone bedrock and dense clay soils typical of this region suggest homeowners should prioritize radon testing.

9.00

pCi/L area average

Above EPA Action Level

Ogle County average: 9.00 pCi/L, based on 5 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Monroe Center itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Monroe Center, IL Radon Mitigation

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

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Radon Readings Near Monroe Center, IL

No homeowner tests have been submitted for Monroe Center yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Stillman Valley	8.9 mi	5.00 pCi/L	1
Rochelle	12.5 mi	13.00 pCi/L	1
Kingston	12.7 mi	13.00 pCi/L	1
Byron	12.9 mi	11.50 pCi/L	2
Belvidere	13.6 mi	4.50 pCi/L	2
Sycamore	18.4 mi	16.00 pCi/L	2
Ashton	19.3 mi	4.00 pCi/L	1
Dekalb	19.5 mi	8.75 pCi/L	4

Ogle County Radon Profile

Because of its underlying geology, Ogle County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 4 cities in Ogle County average 9.00 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Ogle County home regardless of zone or a neighbor's results.

Radon FAQ for Monroe Center, IL

What EPA Radon Zone is Monroe Center in?

Monroe Center and the 61052 zip code are in Ogle 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.

Why are radon readings shown from areas near Monroe Center?

No homeowner radon tests have been submitted for Monroe Center yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Ogle County average—are the best available indicator of local conditions until Monroe Center homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Monroe Center?

Radon mitigation in Monroe Center 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 Monroe Center?

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.