Sun Prairie, WI Radon Levels

Q: What EPA Radon Zone is Sun Prairie in?

Sun Prairie is in Dane County, EPA Zone 1.

Q: How much does radon mitigation cost in Sun Prairie?

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

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

Sun Prairie, WI Radon Facts

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

County Dane County, WI

Zip Code 53590

Sun Prairie sits in Dane County near Madison, where Wisconsin's glacial geology creates elevated radon potential throughout the region. Testing data for zip code 53590 remains limited, making individual home testing essential for residents. The area's mix of newer subdivisions and established neighborhoods, many featuring full basements, requires careful attention to radon mitigation.

9.75

pCi/L area average

Above EPA Action Level

Dane County average: 9.75 pCi/L, based on 8 user-submitted tests across 7 cities in the county. No homeowner readings have been submitted for Sun Prairie 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+

Sun Prairie, WI 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 Sun Prairie?

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Radon Readings Near Sun Prairie, WI

No homeowner tests have been submitted for Sun Prairie yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
4 pCi/L	Waunakee, WI	11.6 mi	21-50 Years	Full Basement	Dec 2025
7 pCi/L	Waunakee, WI	11.6 mi	0-20 Years	Partial Basement	Oct 2015
6 pCi/L	Arlington, WI	12.0 mi	21-50 Years	Full Basement	Jan 2018
9 pCi/L	Mc Farland, WI	12.7 mi	21-50 Years	Full Basement	Mar 2020
4 pCi/L	Middleton, WI	15.4 mi	21-50 Years	Full Basement	Mar 2017
10 pCi/L	Fall River, WI	16.8 mi	51-99 Years	Full Basement	Mar 2020
12 pCi/L	Oregon, WI	19.6 mi	21-50 Years	Full Basement	Jun 2017
18 pCi/L	Verona, WI	21.1 mi	0-20 Years	Full Basement	May 2022

Readings are drawn from the nearest cities with submitted data. Have a result for Sun Prairie? Submit your reading to help your neighbors.

Dane County Radon Profile

Dane County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 7 cities in Dane County average 9.75 pCi/L across 8 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 Dane County to test, as levels can differ between neighboring homes.

Radon FAQ for Sun Prairie, WI

What EPA Radon Zone is Sun Prairie in?

Sun Prairie and the 53590 zip code are in Dane 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 Sun Prairie?

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

Radon mitigation in Sun Prairie 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 Sun Prairie?

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.

Radon Levels Near Sun Prairie, WI

User-submitted radon levels from the cities closest to Sun Prairie with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Waunakee	11.6 mi	5.50 pCi/L	2
Arlington	12.0 mi	6.00 pCi/L	1
Mc Farland	12.7 mi	9.00 pCi/L	1
Middleton	15.4 mi	4.00 pCi/L	1
Fall River	16.8 mi	10.00 pCi/L	1
Oregon	19.6 mi	12.00 pCi/L	1
Verona	21.1 mi	18.00 pCi/L	1
Pardeeville	24.5 mi	4.00 pCi/L	1