Morgan County, WV: EPA's radon zone, explained

EPA's own radon map rates Morgan County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally that's the 81st percentile for radon potential — Morgan County outranks 81% of every county EPA has rated.

Morgan County by the numbers

Morgan County, West Virginia is home to about 17,780 people across 229.096 square miles. That works out to roughly 78 people per square mile. By population, Morgan County is the 603rd largest of every county sharing its EPA zone — the 43rd percentile by population within that zone. EPA's geology-based Region 3 groups Morgan County with 244 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Where the national indoor average runs about 1.3 pCi/L, Morgan County's Zone 1 rating puts its predicted county average above EPA's 4 pCi/L action level itself. A Zone 1 rating means testing is worth doing sooner rather than later, but it is still county-wide average, not a reading for any single house — some homes in Morgan County will test well under the action level, and EPA's guidance is to test regardless of zone.

Testing and mitigation in Morgan County

For a Morgan 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 West Virginia's state radon program

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

Where Morgan County's figures come from

Morgan County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Morgan County carries, the zone explainer covers what it does and doesn't tell you about any one house.