Dickey County, ND Radon Zone Data

Dickey County, ND: EPA's radon zone, explained

EPA places Dickey County in Zone 1 - Highest Potential — a predicted county-wide average indoor radon level above 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally, Dickey County ranks higher in radon potential than 70% of rated counties (the 70th percentile).

Dickey County by the numbers

Dickey County, North Dakota is home to about 4,930 people across 1,131.493 square miles. Averaged across its land area, Dickey County runs about 4 people per square mile. By population, Dickey County is the 924th largest of every county sharing its EPA zone — the 13th percentile by population within that zone. Geologically, Dickey County is grouped into EPA Region 8 alongside 290 other counties that share its rock and soil setting.

What this actually means for a house in Dickey County

Dickey 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 Dickey County specifically.

Next steps for a home in Dickey County

For a Dickey 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 North Dakota's state radon program

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