Lamar County, GA radon potential

Lamar 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. Nationally, Lamar County ranks higher in radon potential than 46% of rated counties (the 46th percentile).

Where Lamar County sits nationally

Lamar County, Georgia is home to about 20,690 people across 183.501 square miles. Population density there runs about 113 people per square mile. Within its own EPA zone, Lamar County is bigger by population than 41% of the counties that share it. Geologically, Lamar County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Lamar County's Zone 2 prediction. Lamar County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Testing and mitigation in Lamar 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 Georgia's state radon program

For Lamar County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Lamar 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 Lamar 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. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.