Greenleaf, WI Radon Levels

Q: What EPA Radon Zone is Greenleaf in?

Greenleaf is in Brown County, EPA Zone 2.

Q: How much does radon mitigation cost in Greenleaf?

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

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

Greenleaf, WI Radon Facts

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

County Brown County, WI

Zip Code 54126

Located in Brown County within the Green Bay Metro area, Greenleaf occupies zip code 54126 where radon data remains limited. The region's glacial till deposits over dolomite bedrock create conditions conducive to radon accumulation, particularly in the area's homes with full basements. Wisconsin's elevated radon potential makes testing essential for all residential properties.

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 Greenleaf 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+

Greenleaf, 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 Greenleaf, WI

No homeowner tests have been submitted for Greenleaf 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	15.1 mi	4.00 pCi/L	1
New Holstein	24.3 mi	7.00 pCi/L	1
Greenville	25.2 mi	7.00 pCi/L	1
Pulaski	27.9 mi	4.00 pCi/L	1
Oshkosh	32.6 mi	19.00 pCi/L	1
Algoma	35.6 mi	5.00 pCi/L	1
Plymouth	37.5 mi	6.00 pCi/L	1
Sheboygan	38.2 mi	5.00 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 Greenleaf, WI

What EPA Radon Zone is Greenleaf in?

Greenleaf and the 54126 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 Greenleaf?

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

Radon mitigation in Greenleaf 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 Greenleaf?

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.