Victoria, IL Radon Levels

Q: What EPA Radon Zone is Victoria in?

Victoria is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Victoria?

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

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

Victoria, IL Radon Facts

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

County Knox County, IL

Zip Code 61485

This small community in Knox County sits in western Illinois where glacial deposits over limestone bedrock create geological conditions conducive to radon production and migration. Testing data for Victoria's zip code 61485 remains limited, making individual assessment crucial for homeowners. Given Illinois's statewide radon potential and the prevalence of basement construction in rural communities, professional radon testing is strongly recommended.

8.00

pCi/L area average

Above EPA Action Level

Knox County average: 8.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Victoria 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+

Victoria, 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 Victoria, IL

No homeowner tests have been submitted for Victoria 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
Knoxville	12.9 mi	8.00 pCi/L	1
Kewanee	17.2 mi	8.00 pCi/L	1
New Windsor	22.5 mi	6.00 pCi/L	1
Dunlap	26.8 mi	7.00 pCi/L	1
Annawan	27.4 mi	10.00 pCi/L	1
Orion	27.8 mi	4.00 pCi/L	1
Monmouth	29.8 mi	8.00 pCi/L	1
Geneseo	30.9 mi	6.00 pCi/L	1

Knox County Radon Profile

The bedrock and soils beneath Knox 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 1 city in Knox County average 8.00 pCi/L across 1 test — 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 Knox County.

Radon FAQ for Victoria, IL

What EPA Radon Zone is Victoria in?

Victoria and the 61485 zip code are in Knox 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 Victoria?

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

Radon mitigation in Victoria 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 Victoria?

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.