Is Spalding County, GA a radon risk area?

EPA's own radon map rates Spalding County zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. Rank it against the rest of the country and Spalding County lands in the 58th percentile for radon potential.

Spalding County by the numbers

About 70,292 people live in Spalding County, Georgia, spread over 195.972 square miles. Population density there runs about 359 people per square mile. Rank 263 by population within its EPA zone puts Spalding County at the 75th percentile among zone peers. Geologically, Spalding County is grouped into EPA Region 4 alongside 735 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Spalding County's Zone 2 prediction. Spalding County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

If Spalding County tests above the action level

Nothing about Spalding County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Georgia's state radon program

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

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed Spalding County's numbers. Whatever zone Spalding County carries, the zone explainer covers what it does and doesn't tell you about any one house.