Pickens County, SC radon potential

EPA places Pickens County in Zone 2 - Moderate Potential — a predicted county-wide average indoor radon level between 2 and 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally, Pickens County ranks higher in radon potential than 61% of rated counties (the 61st percentile).

Where Pickens County sits nationally

Pickens County, South Carolina is home to about 138,207 people across 496.95 square miles. That works out to roughly 278 people per square mile. Within its own EPA zone, Pickens County is bigger by population than 85% of the counties that share it. Pickens County falls in EPA Radon Region 4, one of 736 counties nationally EPA assigns to that same geologic province.

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, Pickens County's Zone 2 prediction lands in the gap between the two. Pickens County's Zone 2 rating sits in the middle nationally; EPA's guidance is unchanged by that — test every home regardless of its zone.

Testing and mitigation in Pickens 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 South Carolina's state radon program

For Pickens County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Pickens 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 Pickens County's figures come from

Pickens 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.