Wichita County, TX radon potential

EPA places Wichita County in Zone 3 - Low Potential — a predicted county-wide average indoor radon level below 2 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally that's the 27th percentile for radon potential — Wichita County outranks 27% of every county EPA has rated.

How Wichita County compares

Wichita County, Texas is home to about 129,984 people across 627.593 square miles. Population density there runs about 207 people per square mile. Within its own EPA zone, Wichita County is bigger by population than 82% of the counties that share it. Wichita County falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Wichita County

At Zone 3, Wichita 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. Don't read Zone 3 as a pass for Wichita County — EPA's guidance to test every home makes no exception for counties predicted low.

If Wichita 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 Texas's state radon program

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

Wichita 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.