Allerton, IL Radon Levels

Q: What EPA Radon Zone is Allerton in?

Allerton is in Vermilion County, EPA Zone 1.

Q: How much does radon mitigation cost in Allerton?

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

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

Allerton, IL Radon Facts

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

County Vermilion County, IL

Zip Code 61810

Positioned in Vermilion County within the Champaign Metro area, Allerton sits on deep glacial moraine deposits over limestone bedrock that contribute to moderate-to-high radon potential. While specific testing data for zip code 61810 remains limited, the underlying Pennsylvanian shale and limestone formations create geological conditions favorable for radon production. Professional testing is recommended for all residential properties in this eastern Illinois community.

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 Allerton 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+

Allerton, 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 Allerton, IL

No homeowner tests have been submitted for Allerton 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
Homer	8.2 mi	20.00 pCi/L	1
Urbana	18.0 mi	15.00 pCi/L	1
Tuscola	20.3 mi	17.00 pCi/L	1
Danville	21.9 mi	5.33 pCi/L	3
Champaign	22.5 mi	6.67 pCi/L	3
Paris	24.5 mi	9.67 pCi/L	3
Gifford	27.1 mi	10.00 pCi/L	1
Mahomet	31.0 mi	5.00 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 Allerton, IL

What EPA Radon Zone is Allerton in?

Allerton and the 61810 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 Allerton?

No homeowner radon tests have been submitted for Allerton 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 Allerton 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 Allerton?

Radon mitigation in Allerton 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 Allerton?

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.