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Danville, IL Radon Levels

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


Danville, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Vermilion County, IL
Zip Code 61832
Avg. User Level 5.30 pCi/L
User Tests 3

Eastern Illinois city Danville in Vermilion County shows an average radon level of 5.33 pCi/L from recent testing, exceeding the EPA action level of 4.0 pCi/L. The community sits on glacial moraine deposits over limestone bedrock typical of central Illinois, and homes in the 61832 zip code should prioritize radon mitigation given these elevated readings.

5.30
pCi/L average
Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Danville, IL. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Danville, IL Radon Mitigation

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

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Danville, IL Radon Levels

User-submitted radon test readings from homes in the Danville area.

Radon LevelCityHome AgeFoundation
5 pCi/L Danville, IL 51-99 Years No Basement/All Crawl Space
6 pCi/L Danville, IL 21-50 Years No Basement/All Crawl Space

Have a radon test result for Danville? Submit your reading to help other homeowners.

Radon Readings Near Danville, IL

Compare radon levels in Danville with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Homer 18.4 mi 20.00 pCi/L 1
Gifford 22.9 mi 10.00 pCi/L 1
Urbana 28.7 mi 15.00 pCi/L 1
Paxton 31.9 mi 4.00 pCi/L 1
Champaign 32.9 mi 6.67 pCi/L 3
Paris 37.1 mi 9.67 pCi/L 3
Mahomet 39.5 mi 5.00 pCi/L 1
Tuscola 41.3 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 Danville, IL

What is the average radon level in Danville, IL?
Based on 3 user-submitted tests, the average radon level in Danville is 5.30 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Danville in?
Danville and the 61832 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.
How much does radon mitigation cost in Danville?
Radon mitigation in Danville 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 Danville?
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.