Lunenburg County, VA: EPA's radon zone, explained

EPA places Lunenburg 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, Lunenburg County ranks higher in radon potential than 41% of rated counties (the 41st percentile).

How Lunenburg County compares

Lunenburg County, Virginia is home to about 12,060 people across 431.7 square miles. Averaged across its land area, Lunenburg County runs about 28 people per square mile. By population, Lunenburg County is the 782nd largest of every county sharing its EPA zone — the 24th percentile by population within that zone. Lunenburg County falls in EPA Radon Region 3, one of 245 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

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 Lunenburg County's Zone 2 prediction. Lunenburg County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

If Lunenburg County tests above the action level

For a Lunenburg 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 Virginia's state radon program

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

Where Lunenburg County's figures come from

Lunenburg County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.