Deer Grove, IL Radon Levels

Q: What EPA Radon Zone is Deer Grove in?

Deer Grove is in Whiteside County, EPA Zone 1.

Q: How much does radon mitigation cost in Deer Grove?

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

Check local Deer Grove radon levels and find certified testing and mitigation professionals to keep your home safe

Deer Grove, IL Radon Facts

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

County Whiteside County, IL

Zip Code 61243

Situated in Whiteside County in northwestern Illinois, Deer Grove sits within EPA Zone 1 where the region's glacial till deposits create high radon potential. The agricultural community's geology features dense glacial soils over limestone bedrock, conditions that strongly favor radon gas production and migration. Given the lack of specific testing data for zip code 61243, residents should conduct radon testing to assess their individual property risk in this high-potential zone.

5.33

pCi/L area average

Above EPA Action Level

Whiteside County average: 5.33 pCi/L, based on 3 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Deer Grove 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+

Deer Grove, 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 Deer Grove, IL

No homeowner tests have been submitted for Deer Grove 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
Walnut	7.8 mi	5.00 pCi/L	1
Rock Falls	9.3 mi	6.00 pCi/L	2
Dixon	18.4 mi	14.00 pCi/L	2
Amboy	18.7 mi	5.00 pCi/L	1
Annawan	19.6 mi	10.00 pCi/L	1
Princeton	23.2 mi	11.50 pCi/L	2
Geneseo	27.0 mi	6.00 pCi/L	1
Fulton	27.9 mi	4.00 pCi/L	1

Whiteside County Radon Profile

The bedrock and soils beneath Whiteside County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 2 cities in Whiteside County average 5.33 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Whiteside County.

Radon FAQ for Deer Grove, IL

What EPA Radon Zone is Deer Grove in?

Deer Grove and the 61243 zip code are in Whiteside 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 Deer Grove?

No homeowner radon tests have been submitted for Deer Grove yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Whiteside County average—are the best available indicator of local conditions until Deer Grove 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 Deer Grove?

Radon mitigation in Deer Grove 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 Deer Grove?

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.