Worthington, MN Radon Levels

Q: What EPA Radon Zone is Worthington in?

Worthington is in Nobles County, EPA Zone 1.

Q: How much does radon mitigation cost in Worthington?

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

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

Worthington, MN Radon Facts

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

County Nobles County, MN

Zip Code 56187

Positioned in southwestern Minnesota's Nobles County, Worthington sits in EPA Zone 1 where the highest radon potential exists across prairie glacial deposits. Current radon testing submissions for ZIP 56187 are insufficient to establish local patterns, highlighting the need for individual home testing. The area's residential construction typically features full basements in glacial till soils that can facilitate radon migration from underlying sedimentary bedrock into living spaces.

8.50

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.50 pCi/L, based on 2 tests from 2 nearby cities. No readings have been submitted for Worthington 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+

Worthington, MN Radon Mitigation

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

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Radon Readings Near Worthington, MN

No homeowner tests have been submitted for Worthington 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
Luverne	30.9 mi	12.00 pCi/L	1
Jasper	42.0 mi	5.00 pCi/L	1

Nobles County Radon Profile

Nobles 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 Nobles 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 Nobles County to test, as levels can differ between neighboring homes.

Radon FAQ for Worthington, MN

What EPA Radon Zone is Worthington in?

Worthington and the 56187 zip code are in Nobles 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 Worthington?

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

Radon mitigation in Worthington 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 Worthington?

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.