Sheffield, IL Radon Levels

Q: What EPA Radon Zone is Sheffield in?

Sheffield is in Bureau County, EPA Zone 1.

Q: How much does radon mitigation cost in Sheffield?

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

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

Sheffield, IL Radon Facts

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

County Bureau County, IL

Zip Code 61361

Located in Bureau County as part of the Davenport Metro area, Sheffield sits where Illinois River valley alluvial soils combine with underlying Ordovician limestone to create variable radon conditions. Testing data for zip code 61361 remains limited, though this EPA Zone 1 region can experience radon levels that differ significantly from block to block. Professional testing helps homeowners understand their individual risk in this geologically complex area.

7.50

pCi/L area average

Above EPA Action Level

Bureau County average: 7.50 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Sheffield 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+

Sheffield, 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 Sheffield?

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

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

Radon Readings Near Sheffield, IL

No homeowner tests have been submitted for Sheffield 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
Annawan	10.4 mi	10.00 pCi/L	1
Walnut	11.3 mi	5.00 pCi/L	1
Princeton	14.9 mi	11.50 pCi/L	2
Kewanee	15.4 mi	8.00 pCi/L	1
Geneseo	24.3 mi	6.00 pCi/L	1
Rock Falls	25.7 mi	6.00 pCi/L	2
Spring Valley	26.7 mi	2.00 pCi/L	1
Amboy	28.5 mi	5.00 pCi/L	1

Bureau County Radon Profile

Because of its underlying geology, Bureau 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 3 cities in Bureau County average 7.50 pCi/L across 4 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 Bureau County home regardless of zone or a neighbor's results.

Radon FAQ for Sheffield, IL

What EPA Radon Zone is Sheffield in?

Sheffield and the 61361 zip code are in Bureau 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 Sheffield?

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

Radon mitigation in Sheffield 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 Sheffield?

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.