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Milton, WI Radon Levels

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


Milton, WI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Rock County, WI
Zip Code 53563
Avg. User Level 11.50 pCi/L
User Tests 2

Located in Rock County within the Janesville metro area, Milton shows an average radon level of 11.5 pCi/L based on available testing data. This reading significantly exceeds the EPA action level, reflecting the area's glacial deposits over limestone bedrock that create ideal conditions for radon accumulation. Residents in zip code 53563 should prioritize radon mitigation given these elevated levels and Wisconsin's geological conditions.

11.50
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Milton, WI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Milton, WI Radon Mitigation

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

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Milton, WI Radon Levels

User-submitted radon test readings from homes in the Milton area.

Radon LevelCityHome AgeFoundation
7 pCi/L Milton, WI 0-20 Years Full Basement
16 pCi/L Milton, WI 0-20 Years Full Basement

Have a radon test result for Milton? Submit your reading to help other homeowners.

Radon Readings Near Milton, WI

Compare radon levels in Milton with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Delavan 19.7 mi 6.00 pCi/L 1
Elkhorn 21.3 mi 5.00 pCi/L 1
Mc Farland 23.6 mi 9.00 pCi/L 1
Oregon 24.3 mi 12.00 pCi/L 1
Williams Bay 25.1 mi 12.00 pCi/L 1
Fontana 25.5 mi 4.50 pCi/L 2
Lake Geneva 28.5 mi 5.00 pCi/L 1
Watertown 33.7 mi 7.00 pCi/L 1

Rock County Radon Profile

The bedrock and soils beneath Rock County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Rock County average 11.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Rock County.

Radon FAQ for Milton, WI

What is the average radon level in Milton, WI?
Based on 2 user-submitted tests, the average radon level in Milton is 11.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Milton in?
Milton and the 53563 zip code are in Rock 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.
How much does radon mitigation cost in Milton?
Radon mitigation in Milton 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 Milton?
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.