Menasha, WI Radon Levels

Q: What EPA Radon Zone is Menasha in?

Menasha is in Winnebago County, EPA Zone 2.

Q: How much does radon mitigation cost in Menasha?

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

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

Menasha, WI Radon Facts

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

County Winnebago County, WI

Zip Code 54952

Situated in Winnebago County within the Fox River Valley, Menasha lies in EPA Zone 2 indicating moderate radon potential across the region. The city's glacial till soils over limestone bedrock create conditions that can produce variable radon levels in homes. While specific testing data for Menasha is limited, homeowners throughout zip code 54952 should consider radon testing, especially in properties with basements or lower-level living spaces.

19.00

pCi/L area average

Above EPA Action Level

Winnebago County average: 19.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Menasha 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+

Menasha, 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 Menasha, WI

No homeowner tests have been submitted for Menasha 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
Greenville	8.5 mi	7.00 pCi/L	1
Oshkosh	15.2 mi	19.00 pCi/L	1
New Holstein	24.5 mi	7.00 pCi/L	1
Green Bay	28.5 mi	4.00 pCi/L	1
Fond Du Lac	30.9 mi	5.00 pCi/L	1
Pulaski	32.0 mi	4.00 pCi/L	1
Green Lake	37.3 mi	6.00 pCi/L	1
Plymouth	38.5 mi	6.00 pCi/L	1

Winnebago County Radon Profile

The soils and bedrock of Winnebago County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Winnebago County average 19.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Winnebago County to test, as levels can differ between neighboring homes.

Radon FAQ for Menasha, WI

What EPA Radon Zone is Menasha in?

Menasha and the 54952 zip code are in Winnebago 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 Menasha?

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

Radon mitigation in Menasha 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 Menasha?

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.