Utica, MN Radon Levels

Q: What EPA Radon Zone is Utica in?

Utica is in Winona County, EPA Zone 1.

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

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

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

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

Utica, MN Radon Facts

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

County Winona County, MN

Zip Code 55979

Situated in southeastern Minnesota's Winona County near the Mississippi River, Utica sits within the Driftless Area where limestone bedrock and karst topography can create localized radon hotspots. Although testing data for the 55979 zip code remains limited, the EPA Zone 1 designation indicates high radon potential throughout this region. Residents should prioritize radon testing, especially in older homes with stone foundations or properties located on bluffs overlooking the river valley.

8.50

pCi/L area average

Above EPA Action Level

Winona County average: 8.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Utica 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+

Utica, MN 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 Utica, MN

No homeowner tests have been submitted for Utica 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
Winona	12.9 mi	10.00 pCi/L	1
Minnesota City	13.1 mi	7.00 pCi/L	1
La Crescent	31.9 mi	7.50 pCi/L	2
Le Roy	40.8 mi	8.00 pCi/L	1

Winona County Radon Profile

The bedrock and soils beneath Winona 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 2 cities in Winona County average 8.50 pCi/L across 2 tests — 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 Winona County.

Radon FAQ for Utica, MN

What EPA Radon Zone is Utica in?

Utica and the 55979 zip code are in Winona 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 Utica?

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

Radon mitigation in Utica 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 Utica?

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.