Warsaw, IL Radon Levels

Q: What EPA Radon Zone is Warsaw in?

Warsaw is in Hancock County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Warsaw yet, so readings from the closest cities and the Hancock 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 Warsaw?

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

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

Warsaw, IL Radon Facts

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

County Hancock County, IL

Zip Code 62379

Perched along the Mississippi River in Hancock County, Warsaw sits on river bluff limestone that contributes to elevated radon potential across western Illinois. Testing data remains limited for this 62379 ZIP code river community, making individual home radon assessment important for residents. The area's historic rivertown homes and rural properties, many with stone foundations and full basements, can provide pathways for radon entry from the underlying Mississippian limestone.

9.00

pCi/L area average

Above EPA Action Level

Hancock County average: 9.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Warsaw 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+

Warsaw, 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 Warsaw, IL

No homeowner tests have been submitted for Warsaw 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
Dallas City	22.1 mi	9.00 pCi/L	1
Quincy	28.7 mi	7.50 pCi/L	2
Stronghurst	38.3 mi	13.00 pCi/L	2

Hancock County Radon Profile

Hancock County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Hancock County average 9.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Hancock County to test, as levels can differ between neighboring homes.

Radon FAQ for Warsaw, IL

What EPA Radon Zone is Warsaw in?

Warsaw and the 62379 zip code are in Hancock 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 Warsaw?

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

Radon mitigation in Warsaw 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 Warsaw?

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.