Egg Harbor, WI Radon Levels

Q: What EPA Radon Zone is Egg Harbor in?

Egg Harbor is in Door County, EPA Zone 1.

Q: How much does radon mitigation cost in Egg Harbor?

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

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

Egg Harbor, WI Radon Facts

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

County Door County, WI

Zip Code 54209

Nestled in Door County on Wisconsin's Lake Michigan shoreline, Egg Harbor sits on dolomite bedrock that can contribute to radon accumulation. Testing data for zip code 54209 is currently limited, encouraging residents to conduct their own radon measurements. The area's seasonal homes and year-round residences often feature basements or lower levels where radon concentrations can build up.

5.00

pCi/L area average

Above EPA Action Level

Door County average: 5.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Egg Harbor 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+

Egg Harbor, 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 Egg Harbor, WI

No homeowner tests have been submitted for Egg Harbor 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
Ellison Bay	20.4 mi	5.00 pCi/L	1
Algoma	29.0 mi	5.00 pCi/L	1
Crivitz	42.6 mi	10.00 pCi/L	1

Door County Radon Profile

The bedrock and soils beneath Door 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 Door County average 5.00 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 Door County.

Radon FAQ for Egg Harbor, WI

What EPA Radon Zone is Egg Harbor in?

Egg Harbor and the 54209 zip code are in Door 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 Egg Harbor?

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

Radon mitigation in Egg Harbor 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 Egg Harbor?

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.