Benson, IL Radon Levels

Q: What EPA Radon Zone is Benson in?

Benson is in Woodford County, EPA Zone 1.

Q: Why are radon readings shown from areas near Benson?

No homeowner radon tests have been submitted for Benson yet, so readings from the closest cities and the Woodford County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Benson?

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

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

Benson, IL Radon Facts

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

County Woodford County, IL

Zip Code 61516

Small-town Benson sits in Woodford County as part of the broader Peoria Metro region, positioned over Illinois River valley alluvial soils and underlying limestone formations. The rural community in zip code 61516 features a mix of historic farmhouses and newer homes, many with partial or full basements typical of central Illinois construction. Limited local testing data makes individual home testing particularly important, especially given the variable radon conditions that can occur throughout this geological zone where limestone bedrock underlies river valley deposits.

7.50

pCi/L area average

Above EPA Action Level

Woodford County average: 7.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Benson 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+

Benson, 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 Benson, IL

No homeowner tests have been submitted for Benson 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
Varna	15.6 mi	20.00 pCi/L	1
Metamora	16.7 mi	7.50 pCi/L	2
Ancona	19.7 mi	20.00 pCi/L	1
Normal	23.0 mi	7.25 pCi/L	4
Mackinaw	23.4 mi	20.00 pCi/L	1
Streator	25.1 mi	7.00 pCi/L	1
East Peoria	25.2 mi	8.00 pCi/L	3
Pontiac	25.5 mi	10.50 pCi/L	2

Woodford County Radon Profile

The bedrock and soils beneath Woodford 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 Woodford County average 7.50 pCi/L across 2 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 Woodford County.

Radon FAQ for Benson, IL

What EPA Radon Zone is Benson in?

Benson and the 61516 zip code are in Woodford 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 Benson?

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

Radon mitigation in Benson 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 Benson?

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.