Lamoille County, VT radon potential

Lamoille County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Lamoille County sits at the 49th percentile nationally for radon potential — above 49 of every 100 rated counties.

How Lamoille County compares

Lamoille County, Vermont is home to about 26,248 people across 461.255 square miles. That works out to roughly 57 people per square mile. Within its own EPA zone, Lamoille County is bigger by population than 49% of the counties that share it. EPA's geology-based Region 1 groups Lamoille County with 58 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Lamoille County

EPA's Zone 2 rating for Lamoille County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Middle-of-the-pack doesn't mean risk-free for any one Lamoille County address — a moderate county average still leaves individual homes to test either side of it.

Testing and mitigation in Lamoille County

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Vermont's state radon program

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

Where Lamoille County's figures come from

Lamoille County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.