Banner County, NE radon potential

EPA places Banner 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, Banner County ranks higher in radon potential than 33% of rated counties (the 33rd percentile).

How Banner County compares

Banner County, Nebraska is home to about 665 people across 746.039 square miles. Population density there runs about 1 people per square mile. Within its own EPA zone, Banner County is bigger by population than 0% of the counties that share it. EPA's geology-based Region 7 groups Banner County with 411 other counties nationally sharing its underlying rock and soil profile.

Why the zone isn't the answer by itself

Banner County's Zone 2 prediction clears the 1.3 pCi/L national indoor average without reaching EPA's own 4 pCi/L point for recommending a fix. Banner 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 Banner County tests above the action level

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 Nebraska's state radon program

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

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