Eureka County, NV radon potential

EPA's own radon map rates Eureka County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally that's the 67th percentile for radon potential — Eureka County outranks 67% of every county EPA has rated.

Eureka County by the numbers

Eureka County, Nevada is home to about 1,877 people across 4,175.688 square miles. Population density there runs about 0 people per square mile. Within its own EPA zone, Eureka County is bigger by population than 3% of the counties that share it. EPA's geology-based Region 9 groups Eureka County with 94 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Outdoor air nationally averages about 0.4 pCi/L, indoor air about 1.3 pCi/L — Eureka County's Zone 1 prediction clears both of those and EPA's fix-it threshold besides. Being in Zone 1 raises the odds Eureka County homes test above the action level, but it does not mean any specific house does — EPA recommends every home be tested, in every zone, because the only way to know is to test.

Next steps for a home in Eureka 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 Nevada's state radon program

For Eureka County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Eureka 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 Eureka 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.