Darlington, WI Radon Levels

Q: What EPA Radon Zone is Darlington in?

Darlington is in Lafayette County, EPA Zone 1.

Q: How much does radon mitigation cost in Darlington?

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

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

Darlington, WI Radon Facts

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

County Lafayette County, WI

Zip Code 53530

Situated in Lafayette County in southwestern Wisconsin's driftless region, Darlington lies within EPA Zone 1 where elevated radon potential is well-established. The area's limestone bedrock and glacial deposits create geological conditions conducive to radon gas production and migration into homes. Testing data for the 53530 zip code remains limited, making individual home testing essential for residents in this historic farming community with its mix of older homes and newer construction.

10.91

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 10.91 pCi/L, based on 11 tests from 10 nearby cities. No readings have been submitted for Darlington 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+

Darlington, 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 Darlington?

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Radon Readings Near Darlington, WI

No homeowner tests have been submitted for Darlington 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
Ridgeway	22.9 mi	8.00 pCi/L	1
Monroe	24.7 mi	13.00 pCi/L	2
New Glarus	25.2 mi	7.00 pCi/L	1
Blue Mounds	26.0 mi	15.00 pCi/L	1
Mount Horeb	28.7 mi	9.00 pCi/L	1
Potosi	29.9 mi	17.00 pCi/L	1
Spring Green	34.6 mi	4.00 pCi/L	1
Verona	35.6 mi	18.00 pCi/L	1

Lafayette County Radon Profile

Lafayette 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. Few homeowner tests have been logged inside Lafayette County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Lafayette County to test, as levels can differ between neighboring homes.

Radon FAQ for Darlington, WI

What EPA Radon Zone is Darlington in?

Darlington and the 53530 zip code are in Lafayette 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 Darlington?

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

Radon mitigation in Darlington 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 Darlington?

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.