Denmark, WI Radon Levels

Q: What EPA Radon Zone is Denmark in?

Denmark is in Brown County, EPA Zone 2.

Q: How much does radon mitigation cost in Denmark?

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

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

Denmark, WI Radon Facts

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

County Brown County, WI

Zip Code 54208

Positioned in Brown County within the Green Bay Metro area, Denmark sits on glacial deposits over dolomite bedrock typical of eastern Wisconsin. Available testing data for zip code 54208 is currently limited, though Wisconsin's geology often produces moderate to elevated radon levels. Given the area's glacial till over carbonate bedrock and common basement construction, residents should conduct radon testing.

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 Denmark 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+

Denmark, 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 Denmark, WI

No homeowner tests have been submitted for Denmark 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	14.3 mi	4.00 pCi/L	1
Algoma	25.1 mi	5.00 pCi/L	1
Pulaski	29.9 mi	4.00 pCi/L	1
New Holstein	31.5 mi	7.00 pCi/L	1
Greenville	35.3 mi	7.00 pCi/L	1
Sheboygan	40.3 mi	5.00 pCi/L	1
Plymouth	42.6 mi	6.00 pCi/L	1
Oshkosh	43.3 mi	19.00 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 Denmark, WI

What EPA Radon Zone is Denmark in?

Denmark and the 54208 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 Denmark?

No homeowner radon tests have been submitted for Denmark 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 Denmark 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 Denmark?

Radon mitigation in Denmark 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 Denmark?

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.