Westville, IL Radon Levels

Q: What EPA Radon Zone is Westville in?

Westville is in Vermilion County, EPA Zone 1.

Q: How much does radon mitigation cost in Westville?

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

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

Westville, IL Radon Facts

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

County Vermilion County, IL

Zip Code 61883

Situated in Vermilion County in east-central Illinois, Westville lies atop deep glacial moraine deposits over limestone bedrock that contribute to moderate-to-high radon potential across the central Illinois prairie. The community's housing stock includes both older homes and newer suburban development, with full basements standard throughout the region. While comprehensive radon testing data for zip code 61883 isn't yet available, the area's EPA Zone 1 designation and Illinois's geological conditions make professional radon testing essential for homeowner safety.

5.33

pCi/L area average

Above EPA Action Level

Vermilion County average: 5.33 pCi/L, based on 3 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Westville 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+

Westville, 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 Westville, IL

No homeowner tests have been submitted for Westville 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
Danville	7.2 mi	5.33 pCi/L	3
Homer	17.3 mi	20.00 pCi/L	1
Gifford	27.4 mi	10.00 pCi/L	1
Urbana	29.3 mi	15.00 pCi/L	1
Paris	30.0 mi	9.67 pCi/L	3
Champaign	33.8 mi	6.67 pCi/L	3
Paxton	37.5 mi	4.00 pCi/L	1
Tuscola	38.2 mi	17.00 pCi/L	1

Vermilion County Radon Profile

Because of its underlying geology, Vermilion 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 1 city in Vermilion 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. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Vermilion County home regardless of zone or a neighbor's results.

Radon FAQ for Westville, IL

What EPA Radon Zone is Westville in?

Westville and the 61883 zip code are in Vermilion 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 Westville?

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

Radon mitigation in Westville 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 Westville?

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.