Augusta, IL Radon Levels

Q: What EPA Radon Zone is Augusta in?

Augusta is in Hancock County, EPA Zone 1.

Q: How much does radon mitigation cost in Augusta?

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

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

Augusta, IL Radon Facts

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

County Hancock County, IL

Zip Code 62311

Small-town Augusta in Hancock County represents rural western Illinois, where EPA Zone 1 classification suggests lower radon potential. The area's agricultural landscape sits on deep glacial deposits that typically produce moderate radon conditions. Since testing data for zip code 62311 remains limited, local homeowners should still consider radon measurement, especially in older farmhouses with stone foundations or partial basements.

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 Augusta 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+

Augusta, 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 Augusta, IL

No homeowner tests have been submitted for Augusta 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	25.0 mi	9.00 pCi/L	1
Quincy	28.5 mi	7.50 pCi/L	2
Stronghurst	35.8 mi	13.00 pCi/L	2
Griggsville	38.3 mi	4.00 pCi/L	1
Pittsfield	44.4 mi	5.00 pCi/L	1
Cuba	44.7 mi	6.00 pCi/L	1
Monmouth	49.5 mi	8.00 pCi/L	1

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 Augusta, IL

What EPA Radon Zone is Augusta in?

Augusta and the 62311 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 Augusta?

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

Radon mitigation in Augusta 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 Augusta?

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.