Marion, WI Radon Levels

Q: What EPA Radon Zone is Marion in?

Marion is in Waupaca County, EPA Zone 1.

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

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

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

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

Marion, WI Radon Facts

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

County Waupaca County, WI

Zip Code 54950

Located in Waupaca County in east-central Wisconsin, Marion sits atop glacial deposits that can influence radon migration patterns throughout the region. While testing data for this community remains sparse, Wisconsin's high radon potential makes individual home testing essential. The area's typical full-basement construction and rural setting create conditions where radon concentrations can vary considerably between properties.

8.50

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.50 pCi/L, based on 12 tests from 10 nearby cities. No readings have been submitted for Marion yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Marion, 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 Marion, WI

No homeowner tests have been submitted for Marion 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
Gresham	12.7 mi	9.00 pCi/L	1
Wittenberg	17.3 mi	11.00 pCi/L	1
Pulaski	30.2 mi	4.00 pCi/L	1
Greenville	31.1 mi	7.00 pCi/L	1
Antigo	33.8 mi	19.00 pCi/L	1
Stevens Point	34.0 mi	6.00 pCi/L	3
Mosinee	40.5 mi	6.00 pCi/L	1
Mountain	41.3 mi	16.00 pCi/L	1

Waupaca County Radon Profile

Waupaca 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. Few homeowner tests have been logged inside Waupaca County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Waupaca County to test, as levels can differ between neighboring homes.

Radon FAQ for Marion, WI

What EPA Radon Zone is Marion in?

Marion and the 54950 zip code are in Waupaca 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 Marion?

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

Radon mitigation in Marion 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 Marion?

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.