Rock Springs, WI Radon Levels

Q: What EPA Radon Zone is Rock Springs in?

Rock Springs is in Sauk County, EPA Zone 2.

Q: How much does radon mitigation cost in Rock Springs?

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

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

Rock Springs, WI Radon Facts

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

County Sauk County, WI

Zip Code 53961

Nestled in Sauk County in south-central Wisconsin, Rock Springs falls within EPA Zone 2, indicating moderate radon potential from the region's sandstone bluffs and glacial deposits. Testing data for this 53961 zip code area is currently limited, emphasizing the value of individual home testing. The Wisconsin River valley's varied geology, including both sedimentary bedrock and glacial till, can produce inconsistent radon levels across the community.

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 Rock Springs 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+

Rock Springs, 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 Rock Springs, WI

No homeowner tests have been submitted for Rock Springs 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	5.7 mi	5.00 pCi/L	1
La Valle	12.5 mi	9.00 pCi/L	2
Spring Green	20.7 mi	4.00 pCi/L	1
Portage	23.3 mi	9.00 pCi/L	1
Arlington	29.7 mi	6.00 pCi/L	1
Pardeeville	30.2 mi	4.00 pCi/L	1
Waunakee	30.8 mi	5.50 pCi/L	2
Kendall	31.6 mi	9.00 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 Rock Springs, WI

What EPA Radon Zone is Rock Springs in?

Rock Springs and the 53961 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 Rock Springs?

No homeowner radon tests have been submitted for Rock Springs 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 Rock Springs 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 Rock Springs?

Radon mitigation in Rock Springs 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 Rock Springs?

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.