Crisp County, GA: EPA's radon zone, explained

EPA's own radon map rates Crisp County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. That puts Crisp County in the 13th percentile nationally for radon potential — higher than 13% of the counties EPA has rated.

How Crisp County compares

Crisp County, Georgia is home to about 19,468 people across 272.682 square miles. Averaged across its land area, Crisp County runs about 71 people per square mile. By population, Crisp County is the 632nd largest of every county sharing its EPA zone — the 39th percentile by population within that zone. EPA's geology-based Region 4 groups Crisp County with 735 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Crisp 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. A Zone 3 rating means Crisp County's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Next steps for a home in Crisp County

For a Crisp County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Georgia's state radon program

For Crisp County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Crisp County's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Crisp County's figures come from

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