Sherrard, IL Radon Levels

Q: What EPA Radon Zone is Sherrard in?

Sherrard is in Mercer County, EPA Zone 1.

Q: How much does radon mitigation cost in Sherrard?

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

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

Sherrard, IL Radon Facts

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

County Mercer County, IL

Zip Code 61281

Sherrard in Mercer County benefits from its location along the Illinois River valley, where alluvial soils over limestone bedrock create variable radon conditions within the Davenport Metro area. The community's housing reflects typical western Illinois character, with many homes featuring full basements suited to the Midwest climate. Although specific radon data for zip code 61281 remains limited, the area's EPA Zone 1 status makes professional testing advisable for residents.

6.00

pCi/L area average

Above EPA Action Level

Mercer County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Sherrard 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+

Sherrard, 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 Sherrard, IL

No homeowner tests have been submitted for Sherrard 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
Orion	7.0 mi	4.00 pCi/L	1
New Windsor	7.4 mi	6.00 pCi/L	1
Coal Valley	9.3 mi	12.00 pCi/L	1
Moline	13.0 mi	5.00 pCi/L	1
Rock Island	13.5 mi	4.50 pCi/L	2
Geneseo	20.3 mi	6.00 pCi/L	1
Monmouth	28.2 mi	8.00 pCi/L	1
Knoxville	29.1 mi	8.00 pCi/L	1

Mercer County Radon Profile

Because of its underlying geology, Mercer 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 Mercer County average 6.00 pCi/L across 1 test — 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 Mercer County home regardless of zone or a neighbor's results.

Radon FAQ for Sherrard, IL

What EPA Radon Zone is Sherrard in?

Sherrard and the 61281 zip code are in Mercer 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 Sherrard?

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

Radon mitigation in Sherrard 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 Sherrard?

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.