Mercer, WI Radon Levels

Q: What EPA Radon Zone is Mercer in?

Mercer is in Iron County, EPA Zone 2.

Q: Why are radon readings shown from areas near Mercer?

No homeowner radon tests have been submitted for Mercer yet, so readings from the closest cities and the Iron County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Mercer?

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

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

Mercer, WI Radon Facts

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

County Iron County, WI

Zip Code 54547

Located in Iron County within Wisconsin's Northwoods region, Mercer sits atop Precambrian bedrock and glacial deposits that can influence radon levels in area homes. Though testing data for the 54547 zip code remains limited, the area's EPA Zone 2 classification indicates moderate radon potential. Lake country homes with basements should consider radon testing, particularly older properties with stone or block foundations.

7.82

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.82 pCi/L, based on 11 tests from 10 nearby cities. No readings have been submitted for Mercer yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Mercer, 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 Mercer, WI

No homeowner tests have been submitted for Mercer 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
Manitowish Waters	10.7 mi	20.00 pCi/L	1
Butternut	22.4 mi	9.00 pCi/L	1
Woodruff	24.9 mi	4.00 pCi/L	1
Minocqua	25.4 mi	5.00 pCi/L	1
Sayner	29.2 mi	6.50 pCi/L	2
Saint Germain	32.8 mi	5.00 pCi/L	1
Clam Lake	39.9 mi	11.00 pCi/L	1
Ashland	41.8 mi	6.00 pCi/L	1

Iron County Radon Profile

Iron County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Iron County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. 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 Iron County.

Radon FAQ for Mercer, WI

What EPA Radon Zone is Mercer in?

Mercer and the 54547 zip code are in Iron 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 Mercer?

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

Radon mitigation in Mercer 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 Mercer?

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.