Worthington, MN Radon Mitigation and Testing

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.

Nobles County

EPA Zone 1

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.

Worthington, MN Radon Mitigation

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

Worthington, MN Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Worthington Radon Facts

Key details about the radon risk profile for Worthington and the 56187 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Nobles County, MN

Zip Code

56187

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Worthington and the 56187 zip code are located in Nobles County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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.

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.

Most Active Radon Markets in Minnesota

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Savage	5.00 pCi/L	3
Faribault	10.00 pCi/L	2
Shakopee	6.50 pCi/L	2
Minneapolis	5.00 pCi/L	2
Lakeville	6.00 pCi/L	1
Delano	5.00 pCi/L	1
Montgomery	5.00 pCi/L	1
Rosemount	No submissions	0