Albany County, WY: EPA's radon zone, explained

Albany County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Rank it against the rest of the country and Albany County lands in the 88th percentile for radon potential.

Where Albany County sits nationally

Albany County, Wyoming is home to about 39,288 people across 4,274.175 square miles. That works out to roughly 9 people per square mile. By population, Albany County is the 384th largest of every county sharing its EPA zone — the 64th percentile by population within that zone. EPA's geology-based Region 8 groups Albany County with 290 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Where the national indoor average runs about 1.3 pCi/L, Albany County's Zone 1 rating puts its predicted county average above EPA's 4 pCi/L action level itself. EPA's guidance doesn't change because of a Zone 1 label: test the house. What changes is the reason to not put it off in Albany County specifically.

Testing and mitigation in Albany County

For a Albany 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 Wyoming's state radon program

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

Where Albany County's figures come from

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