Janesville, MN Radon Levels

Q: What EPA Radon Zone is Janesville in?

Janesville is in Waseca County, EPA Zone 1.

Q: How much does radon mitigation cost in Janesville?

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

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

Janesville, MN Radon Facts

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

County Waseca County, MN

Zip Code 56048

Located in south-central Minnesota's Waseca County, Janesville sits on deep glacial deposits over sedimentary bedrock formations. The community features small-town residential properties, many with full basements standard to Minnesota's northern climate construction practices. While testing data for zip code 56048 remains limited, residents should conduct radon testing given Minnesota's variable radon conditions and the geological characteristics that can contribute to gas accumulation in basement spaces.

6.77

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.77 pCi/L, based on 13 tests from 10 nearby cities. No readings have been submitted for Janesville 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+

Janesville, MN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Need Radon Mitigation or Testing in Janesville?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Waseca County Pros

1-800-299-3578 507-369-2661 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Janesville, MN

No homeowner tests have been submitted for Janesville 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
Mankato	17.3 mi	14.00 pCi/L	1
Montgomery	22.9 mi	5.00 pCi/L	1
Faribault	24.5 mi	10.00 pCi/L	2
Wells	25.8 mi	6.00 pCi/L	1
Nicollet	26.0 mi	2.00 pCi/L	1
New Prague	29.9 mi	9.00 pCi/L	2
Blooming Prairie	35.6 mi	4.00 pCi/L	1
Northfield	35.8 mi	4.50 pCi/L	2

Waseca County Radon Profile

The bedrock and soils beneath Waseca County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. User-submitted readings are still sparse within Waseca 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 Waseca County.

Radon FAQ for Janesville, MN

What EPA Radon Zone is Janesville in?

Janesville and the 56048 zip code are in Waseca 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 Janesville?

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

Radon mitigation in Janesville 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 Janesville?

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.