What EPA's radon map says about Pike County

EPA's own radon map rates Pike County zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Nationally, Pike County ranks higher in radon potential than 7% of rated counties (the 7th percentile).

Pike County by the numbers

About 10,027 people live in Pike County, Arkansas, spread over 600.337 square miles. Population density there runs about 17 people per square mile. Among counties sharing Pike County's EPA zone, it outranks 20% of them by population. EPA's geology-based Region 6 groups Pike County with 502 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Pike County

A Zone 3 county like Pike County is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. A Zone 3 rating means Pike 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.

Testing and mitigation in Pike County

Mitigation cost doesn't depend on Pike 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 Arkansas's state radon program

Pike County's test kit answers today; a Airthings radon monitor keeps answering for Pike 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 Pike County's numbers. Whatever zone Pike County carries, the zone explainer covers what it does and doesn't tell you about any one house.