Camp County, TX: EPA's radon zone, explained

Camp County is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Camp County sits at the 9th percentile nationally for radon potential — above 9 of every 100 rated counties.

Camp County by the numbers

Camp County, Texas is home to about 13,164 people across 195.848 square miles. Population density there runs about 67 people per square mile. By population, Camp County is the 748th largest of every county sharing its EPA zone — the 27th percentile by population within that zone. EPA's geology-based Region 6 groups Camp County with 502 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

At Zone 3, Camp County's predicted county average is under the national indoor average (~1.3 pCi/L) and well below EPA's 4 pCi/L action level — outdoor air nationally runs about 0.4 pCi/L for comparison. Even at Zone 3, Camp County homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

If Camp County tests above the action level

For a Camp 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 Texas's state radon program

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

Camp County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Camp County carries, the zone explainer covers what it does and doesn't tell you about any one house.