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

EPA places Pine County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 50th percentile for radon potential — Pine County outranks 50% of every county EPA has rated.

How Pine County compares

Pine County, Minnesota is home to about 30,319 people across 1,411.333 square miles. Population density there runs about 21 people per square mile. By population, Pine County is the 484th largest of every county sharing its EPA zone — the 53rd percentile by population within that zone. EPA's geology-based Region 5 groups Pine County with 523 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

EPA's Zone 2 rating for Pine County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Pine County — testing is the only way to know an individual home's actual level.

If Pine County tests above the action level

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

Where Pine County's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Pine County carries, the zone explainer covers what it does and doesn't tell you about any one house.