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Thiensville, WI Radon Levels

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


Thiensville, WI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Ozaukee County, WI
Zip Code 53092
Avg. User Level 5.00 pCi/L
User Tests 1

Situated in Ozaukee County within the Milwaukee Metro area, Thiensville's glacial deposits over dolomite bedrock contribute to elevated radon potential throughout southeastern Wisconsin. Testing data indicates an average radon level of 5.0 pCi/L, exceeding EPA guidelines and making mitigation planning essential for homeowners in zip code 53092.

5.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Thiensville, WI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Thiensville, WI Radon Mitigation

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

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Thiensville, WI Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Thiensville, WI 21-50 Years Full Basement

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

Radon Readings Near Thiensville, WI

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

CityDistanceAvg User LevelReadings
Mequon 1.2 mi 6.00 pCi/L 1
Cedarburg 4.7 mi 6.00 pCi/L 1
Grafton 6.2 mi 17.00 pCi/L 1
Menomonee Falls 8.3 mi 6.50 pCi/L 2
Milwaukee 12.7 mi 10.00 pCi/L 3
Slinger 16.4 mi 20.00 pCi/L 1
West Bend 17.1 mi 8.00 pCi/L 1
Pewaukee 18.2 mi 10.00 pCi/L 1

Ozaukee County Radon Profile

The soils and bedrock of Ozaukee 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 4 cities in Ozaukee County average 8.50 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 Ozaukee County to test, as levels can differ between neighboring homes.

Radon FAQ for Thiensville, WI

What is the average radon level in Thiensville, WI?
Based on 1 user-submitted test, the average radon level in Thiensville is 5.00 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 Thiensville in?
Thiensville and the 53092 zip code are in Ozaukee 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.
How much does radon mitigation cost in Thiensville?
Radon mitigation in Thiensville 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 Thiensville?
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.