Baraboo, WI Radon Levels

Q: What EPA Radon Zone is Baraboo in?

Baraboo is in Sauk County, EPA Zone 2.

Q: How much does radon mitigation cost in Baraboo?

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

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

Baraboo, WI Radon Facts

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

County Sauk County, WI

Zip Code 53913

Baraboo in Sauk County sits within the Madison Metro area where Wisconsin's diverse geology of glacial deposits over limestone can create variable radon conditions. Testing data for the 53913 zip code remains limited, making professional radon testing important for area homeowners to understand their exposure levels.

6.75

pCi/L area average

Above EPA Action Level

Sauk County average: 6.75 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Baraboo 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+

Baraboo, 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 Baraboo, WI

No homeowner tests have been submitted for Baraboo 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
Reedsburg	13.0 mi	5.00 pCi/L	1
Portage	14.5 mi	9.00 pCi/L	1
La Valle	20.1 mi	9.00 pCi/L	2
Pardeeville	21.3 mi	4.00 pCi/L	1
Arlington	22.0 mi	6.00 pCi/L	1
Waunakee	25.5 mi	5.50 pCi/L	2
Spring Green	26.0 mi	4.00 pCi/L	1
Middleton	28.7 mi	4.00 pCi/L	1

Sauk County Radon Profile

The soils and bedrock of Sauk 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 3 cities in Sauk County average 6.75 pCi/L across 4 tests — 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 Sauk County to test, as levels can differ between neighboring homes.

Radon FAQ for Baraboo, WI

What EPA Radon Zone is Baraboo in?

Baraboo and the 53913 zip code are in Sauk 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 Baraboo?

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

Radon mitigation in Baraboo 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 Baraboo?

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.