Gasconade County, MO radon potential

EPA places Gasconade 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. Rank it against the rest of the country and Gasconade County lands in the 43rd percentile for radon potential.

Where Gasconade County sits nationally

Gasconade County, Missouri is home to about 14,655 people across 519.005 square miles. Population density there runs about 28 people per square mile. Within its own EPA zone, Gasconade County is bigger by population than 30% of the counties that share it. Geologically, Gasconade County is grouped into EPA Region 7 alongside 411 other counties that share its rock and soil setting.

Zone vs. an actual test

EPA's Zone 2 rating for Gasconade County sits below its own 4 pCi/L action level but above the national indoor average of about 1.3 pCi/L. Gasconade 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 Gasconade 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 Missouri's state radon program

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

Where Gasconade County's figures come from

Gasconade County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.