McIntosh County, OK radon potential

EPA places McIntosh County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 13th percentile for radon potential — McIntosh County outranks 13% of every county EPA has rated.

How McIntosh County compares

McIntosh County, Oklahoma is home to about 19,710 people across 618.292 square miles. Averaged across its land area, McIntosh County runs about 32 people per square mile. Within its own EPA zone, McIntosh County is bigger by population than 39% of the counties that share it. Geologically, McIntosh County is grouped into EPA Region 6 alongside 502 other counties that share its rock and soil setting.

What this actually means for a house in McIntosh County

McIntosh County's Zone 3 prediction undercuts the roughly 1.3 pCi/L most US homes average, nowhere near EPA's 4 pCi/L threshold for recommending mitigation. Even at Zone 3, McIntosh County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

If McIntosh County tests above the action level

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