McIntosh County, ND radon potential

EPA's own radon map rates McIntosh County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. McIntosh County sits at the 68th percentile nationally for radon potential — above 68 of every 100 rated counties.

Where McIntosh County sits nationally

McIntosh County, North Dakota is home to about 2,461 people across 974.563 square miles. Averaged across its land area, McIntosh County runs about 3 people per square mile. Within its own EPA zone, McIntosh County is bigger by population than 6% of the counties that share it. Geologically, McIntosh County is grouped into EPA Region 8 alongside 290 other counties that share its rock and soil setting.

Zone vs. an actual test

Fixing a home becomes an EPA recommendation past 4 pCi/L, and that is precisely the side of the line McIntosh County's Zone 1 prediction lands on, well above the roughly 1.3 pCi/L most US homes average. That doesn't mean every McIntosh County house tests high — a zone is a county-wide prediction, never a single-home reading — but it's a reason to test sooner rather than let it wait.

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

McIntosh County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.