Port Wing, WI Radon Levels

Q: What EPA Radon Zone is Port Wing in?

Port Wing is in Bayfield County, EPA Zone 2.

Q: How much does radon mitigation cost in Port Wing?

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

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

Port Wing, WI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Bayfield County, WI

Zip Code 54865

Positioned along Lake Superior in Bayfield County, Port Wing sits on glacial lake deposits and ancient bedrock formations of northern Wisconsin. Testing data for zip code 54865 is currently unavailable, making individual home testing important for residents. The area's combination of seasonal homes and year-round residences, along with varied foundation types and the region's geological conditions, can influence radon entry patterns.

7.00

pCi/L area average

Above EPA Action Level

Bayfield County average: 7.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Port Wing 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+

Port Wing, WI 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 Port Wing, WI

No homeowner tests have been submitted for Port Wing 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
Drummond	31.5 mi	7.00 pCi/L	1
Ashland	34.0 mi	6.00 pCi/L	1
Clam Lake	47.4 mi	11.00 pCi/L	1

Bayfield County Radon Profile

Bayfield County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 1 city in Bayfield County average 7.00 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 Bayfield County.

Radon FAQ for Port Wing, WI

What EPA Radon Zone is Port Wing in?

Port Wing and the 54865 zip code are in Bayfield County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Port Wing?

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

Radon mitigation in Port Wing 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 Port Wing?

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.