Seymour, WI Radon Levels

Q: What EPA Radon Zone is Seymour in?

Seymour is in Outagamie County, EPA Zone 2.

Q: How much does radon mitigation cost in Seymour?

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

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

Seymour, WI Radon Facts

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

County Outagamie County, WI

Zip Code 54165

Situated in Outagamie County within Wisconsin's Fox River Valley, Seymour serves both the Appleton and Green Bay metropolitan areas. The community's foundation lies on glacial deposits over Paleozoic bedrock, creating geological conditions that can contribute to radon accumulation in the area's predominantly basement-equipped homes. Since specific radon measurements for zip code 54165 are currently unavailable, local residents should pursue professional testing to understand their individual exposure risk.

7.00

pCi/L area average

Above EPA Action Level

Outagamie 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 Seymour 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+

Seymour, 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 Seymour, WI

No homeowner tests have been submitted for Seymour 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
Pulaski	10.8 mi	4.00 pCi/L	1
Green Bay	14.5 mi	4.00 pCi/L	1
Greenville	18.0 mi	7.00 pCi/L	1
Gresham	33.2 mi	9.00 pCi/L	1
Oshkosh	36.1 mi	19.00 pCi/L	1
New Holstein	40.6 mi	7.00 pCi/L	1
Algoma	42.9 mi	5.00 pCi/L	1
Wittenberg	47.0 mi	11.00 pCi/L	1

Outagamie County Radon Profile

EPA mapping assigns Outagamie County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 1 city in Outagamie 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. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Outagamie County home regardless of zone or a neighbor's results.

Radon FAQ for Seymour, WI

What EPA Radon Zone is Seymour in?

Seymour and the 54165 zip code are in Outagamie 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 Seymour?

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

Radon mitigation in Seymour 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 Seymour?

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.