What EPA's radon map says about Catoosa County

Catoosa County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Catoosa County sits at the 57th percentile nationally for radon potential — above 57 of every 100 rated counties.

Catoosa County by the numbers

About 68,940 people live in Catoosa County, Georgia, spread over 162.162 square miles. That works out to roughly 425 people per square mile. Among counties sharing Catoosa County's EPA zone, it outranks 74% of them by population. EPA's geology-based Region 4 groups Catoosa County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Catoosa County's Zone 2 prediction lands in the gap between the two. Middle-of-the-pack doesn't mean risk-free for any one Catoosa County address — a moderate county average still leaves individual homes to test either side of it.

If Catoosa County tests above the action level

Mitigation cost doesn't depend on Catoosa County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Georgia's state radon program

Catoosa County's test kit answers today; a Airthings radon monitor keeps answering for Catoosa County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. Code RADONZONE-10OFF takes 10% off at checkout.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Catoosa County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.