Amherst, WI Radon Levels

Q: What EPA Radon Zone is Amherst in?

Amherst is in Portage County, EPA Zone 1.

Q: How much does radon mitigation cost in Amherst?

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

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

Amherst, WI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Portage County, WI

Zip Code 54406

Located in central Wisconsin's Portage County, Amherst sits within EPA Zone 1 where comprehensive radon testing data for zip code 54406 is still developing. The area's sandy glacial outwash soils typically allow for better radon dispersion than clay-rich regions, though localized conditions can vary significantly. Testing remains important for homeowners, especially those with basement foundations or properties near wetland areas where soil conditions may trap radon.

6.00

pCi/L area average

Above EPA Action Level

Portage County average: 6.00 pCi/L, based on 3 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Amherst 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+

Amherst, 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 Amherst, WI

No homeowner tests have been submitted for Amherst 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
Stevens Point	14.1 mi	6.00 pCi/L	3
Hancock	23.3 mi	5.00 pCi/L	1
Wautoma	24.8 mi	15.00 pCi/L	1
Wisconsin Rapids	27.8 mi	4.50 pCi/L	2
Wittenberg	28.5 mi	11.00 pCi/L	1
Coloma	28.9 mi	17.00 pCi/L	1
Nekoosa	30.2 mi	6.00 pCi/L	1
Mosinee	32.1 mi	6.00 pCi/L	1

Portage County Radon Profile

The bedrock and soils beneath Portage County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Portage County average 6.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Portage County.

Radon FAQ for Amherst, WI

What EPA Radon Zone is Amherst in?

Amherst and the 54406 zip code are in Portage County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Amherst?

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

Radon mitigation in Amherst 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 Amherst?

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.