Brodhead, WI Radon Levels

Q: What EPA Radon Zone is Brodhead in?

Brodhead is in Green County, EPA Zone 1.

Q: How much does radon mitigation cost in Brodhead?

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

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

Brodhead, WI Radon Facts

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

County Green County, WI

Zip Code 53520

Located in Green County within both the Madison and Janesville Metro areas, Brodhead serves zip code 53520 where local radon testing data is currently unavailable. Southern Wisconsin's dolomite bedrock and agricultural soils can create conditions conducive to radon entry into homes, particularly those with basement foundations common throughout the region. Testing is recommended for all residents to establish their home's radon profile.

11.00

pCi/L area average

Above EPA Action Level

Green County average: 11.00 pCi/L, based on 3 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Brodhead 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+

Brodhead, 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 Brodhead, WI

No homeowner tests have been submitted for Brodhead 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
Monroe	13.7 mi	13.00 pCi/L	2
New Glarus	19.7 mi	7.00 pCi/L	1
Oregon	22.0 mi	12.00 pCi/L	1
Milton	24.2 mi	11.50 pCi/L	2
Mc Farland	27.9 mi	9.00 pCi/L	1
Verona	28.4 mi	18.00 pCi/L	1
Mount Horeb	32.9 mi	9.00 pCi/L	1
Middleton	34.8 mi	4.00 pCi/L	1

Green County Radon Profile

Because of its underlying geology, Green County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 2 cities in Green County average 11.00 pCi/L across 3 tests — 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 Green County home regardless of zone or a neighbor's results.

Radon FAQ for Brodhead, WI

What EPA Radon Zone is Brodhead in?

Brodhead and the 53520 zip code are in Green 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 Brodhead?

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

Radon mitigation in Brodhead 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 Brodhead?

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.