Emmons County, ND radon potential

EPA's own radon map rates Emmons County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. That puts Emmons County in the 69th percentile nationally for radon potential — higher than 69% of the counties EPA has rated.

Where Emmons County sits nationally

Emmons County, North Dakota is home to about 3,209 people across 1,508.401 square miles. Population density there runs about 2 people per square mile. Within its own EPA zone, Emmons County is bigger by population than 8% of the counties that share it. Emmons County falls in EPA Radon Region 8, one of 291 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Emmons County carries a Zone 1 label because its predicted average clears 4 pCi/L outright — three-plus times the 0.4 pCi/L typical outdoors and above the 1.3 pCi/L most homes see. 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 Emmons County specifically.

Next steps for a home in Emmons 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 North Dakota's state radon program

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

Where Emmons 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. Whatever zone Emmons County carries, the zone explainer covers what it does and doesn't tell you about any one house.