Rice County, KS radon potential
EPA places Rice County in Zone 1 - Highest Potential — a predicted county-wide average indoor radon level above 4 pCi/L, based on the geology, soil and aerial radioactivity data behind EPA's national map. Nationally, Rice County ranks higher in radon potential than 75% of rated counties (the 75th percentile).
Where Rice County sits nationally
Rice County, Kansas is home to about 9,284 people across 726.235 square miles. Averaged across its land area, Rice County runs about 13 people per square mile. Within its own EPA zone, Rice County is bigger by population than 26% of the counties that share it. EPA's geology-based Region 7 groups Rice County with 411 other counties nationally sharing its underlying rock and soil profile.
Zone vs. an actual test
Fixing a home becomes an EPA recommendation past 4 pCi/L, and that is precisely the side of the line Rice County's Zone 1 prediction lands on, well above the roughly 1.3 pCi/L most US homes average. EPA's guidance doesn't change because of a Zone 1 label: test the house. What changes is the reason to not put it off in Rice County specifically.
If Rice 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 Kansas's state radon program
For Rice County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Rice 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 Rice County's figures come from
Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Rice County carries, the zone explainer covers what it does and doesn't tell you about any one house.