De Pere, WI Radon Levels

Q: What EPA Radon Zone is De Pere in?

De Pere is in Brown County, EPA Zone 2.

Q: How much does radon mitigation cost in De Pere?

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

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

De Pere, WI Radon Facts

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

County Brown County, WI

Zip Code 54115

Situated along the Fox River in Brown County within the Appleton Metro, De Pere sits on glacial deposits over dolomite bedrock that create moderate radon potential in northeastern Wisconsin. While testing data for zip code 54115 remains limited, the area's geological conditions suggest some possibility for elevated readings. This growing community's mix of historic and newer homes, many with full basements, would benefit from radon testing to ensure safe indoor air quality.

4.00

pCi/L area average

Above EPA Action Level

Brown County average: 4.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for De Pere 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+

De Pere, WI Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Need Radon Mitigation or Testing in De Pere?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Brown County Pros

1-800-299-3578 920-569-0139 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near De Pere, WI

No homeowner tests have been submitted for De Pere 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
Green Bay	5.8 mi	4.00 pCi/L	1
Pulaski	17.8 mi	4.00 pCi/L	1
Greenville	24.5 mi	7.00 pCi/L	1
Algoma	32.9 mi	5.00 pCi/L	1
New Holstein	34.1 mi	7.00 pCi/L	1
Oshkosh	37.6 mi	19.00 pCi/L	1
Gresham	45.1 mi	9.00 pCi/L	1
Plymouth	47.7 mi	6.00 pCi/L	1

Brown County Radon Profile

EPA mapping assigns Brown 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 Brown County average 4.00 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 Brown County home regardless of zone or a neighbor's results.

Radon FAQ for De Pere, WI

What EPA Radon Zone is De Pere in?

De Pere and the 54115 zip code are in Brown 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 De Pere?

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

Radon mitigation in De Pere 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 De Pere?

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.