Wayne County, UT: EPA's radon zone, explained

EPA's own radon map rates Wayne County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Rank it against the rest of the country and Wayne County lands in the 34th percentile for radon potential.

Wayne County by the numbers

Wayne County, Utah is home to about 2,608 people across 2,461.094 square miles. Averaged across its land area, Wayne County runs about 1 people per square mile. By population, Wayne County is the 992nd largest of every county sharing its EPA zone — the 4th percentile by population within that zone. Geologically, Wayne County is grouped into EPA Region 8 alongside 290 other counties that share its rock and soil setting.

Zone vs. an actual test

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Wayne County's Zone 2 prediction lands in the gap between the two. Wayne 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 Wayne County

For a Wayne 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 Utah's state radon program

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

Where Wayne 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. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.