Stutsman County, ND radon potential

EPA's own radon map rates Stutsman County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally, Stutsman County ranks higher in radon potential than 83% of rated counties (the 83rd percentile).

Where Stutsman County sits nationally

Stutsman County, North Dakota is home to about 21,546 people across 2,221.904 square miles. Population density there runs about 10 people per square mile. Within its own EPA zone, Stutsman County is bigger by population than 49% of the counties that share it. EPA's geology-based Region 8 groups Stutsman County with 290 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Stutsman County's predicted average sits above EPA's own action level of 4 pCi/L — the concentration at which EPA recommends fixing a home — versus a national average around 1.3 pCi/L indoors and 0.4 pCi/L outdoors. Some Stutsman County homes will test comfortably under the action level despite the county's Zone 1 rating — the only way to know which kind of home you have is an actual test.

Testing and mitigation in Stutsman 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 Stutsman County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Stutsman 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 Stutsman County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Stutsman County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.