Roanoke, IL Radon Levels

Q: What EPA Radon Zone is Roanoke in?

Roanoke is in Woodford County, EPA Zone 1.

Q: How much does radon mitigation cost in Roanoke?

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

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

Roanoke, IL Radon Facts

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

County Woodford County, IL

Zip Code 61561

Set in Woodford County within the Peoria Metro area, Roanoke sits on central Illinois's characteristic glacial deposits over limestone bedrock. Testing data for radon levels remains limited in the 61561 zip code area, but the region's geology and prevalence of full basements in local housing stock suggest homeowners should consider professional testing.

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 Roanoke 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+

Roanoke, IL Radon Mitigation

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

Need Radon Mitigation or Testing in Roanoke?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Woodford County Pros

1-800-299-3578 309-716-3952 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Roanoke, IL

No homeowner tests have been submitted for Roanoke 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
Metamora	11.6 mi	7.50 pCi/L	2
Varna	16.5 mi	20.00 pCi/L	1
Mackinaw	19.1 mi	20.00 pCi/L	1
East Peoria	19.8 mi	8.00 pCi/L	3
Peoria	22.4 mi	5.00 pCi/L	1
Normal	22.7 mi	7.25 pCi/L	4
Dunlap	22.8 mi	7.00 pCi/L	1
Ancona	24.8 mi	20.00 pCi/L	1

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 Roanoke, IL

What EPA Radon Zone is Roanoke in?

Roanoke and the 61561 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 Roanoke?

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

Radon mitigation in Roanoke 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 Roanoke?

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.