Faribault County, MN Radon Zone Data

Faribault County, MN: EPA's radon zone, explained

Faribault County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. That puts Faribault County in the 78th percentile nationally for radon potential — higher than 78% of the counties EPA has rated.

How Faribault County compares

Faribault County, Minnesota is home to about 13,886 people across 712.479 square miles. Population density there runs about 19 people per square mile. By population, Faribault County is the 690th largest of every county sharing its EPA zone — the 35th percentile by population within that zone. EPA's geology-based Region 5 groups Faribault County with 523 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Faribault County

Faribault County carries a Zone 1 label because its predicted average clears 4 pCi/L outright — three-plus times the 0.4 pCi/L typical outdoors and above the 1.3 pCi/L most homes see. Being in Zone 1 raises the odds Faribault County homes test above the action level, but it does not mean any specific house does — EPA recommends every home be tested, in every zone, because the only way to know is to test.

Testing and mitigation in Faribault County

For a Faribault County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Minnesota's state radon program

For Faribault County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Faribault County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

Where Faribault County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Faribault County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.