Davis Junction, IL Radon Levels

Q: What EPA Radon Zone is Davis Junction in?

Davis Junction is in Ogle County, EPA Zone 1.

Q: How much does radon mitigation cost in Davis Junction?

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

Check local Davis Junction radon levels and find certified testing and mitigation professionals to keep your home safe

Davis Junction, IL Radon Facts

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

County Ogle County, IL

Zip Code 61020

Located in Ogle County within the Rockford Metro area, Davis Junction sits on glacial till deposits over Ordovician dolomite bedrock that can produce elevated radon levels. This northern Illinois community lies within EPA Zone 1, indicating high radon potential throughout the region. While specific testing data for zip code 61020 is limited, the area's geological conditions and regional patterns suggest radon testing is important for all residents.

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 Davis Junction 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+

Davis Junction, 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 Davis Junction, IL

No homeowner tests have been submitted for Davis Junction 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	5.6 mi	5.00 pCi/L	1
Byron	9.6 mi	11.50 pCi/L	2
Rochelle	11.7 mi	13.00 pCi/L	1
Kingston	16.1 mi	13.00 pCi/L	1
Belvidere	16.3 mi	4.50 pCi/L	2
Ashton	17.4 mi	4.00 pCi/L	1
Mount Morris	18.3 mi	4.00 pCi/L	1
Pecatonica	19.7 mi	11.00 pCi/L	1

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 Davis Junction, IL

What EPA Radon Zone is Davis Junction in?

Davis Junction and the 61020 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 Davis Junction?

No homeowner radon tests have been submitted for Davis Junction 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 Davis Junction 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 Davis Junction?

Radon mitigation in Davis Junction 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 Davis Junction?

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.