What EPA's radon map says about Edwards County

Edwards County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Nationally, Edwards County ranks higher in radon potential than 34% of rated counties (the 34th percentile).

Edwards County by the numbers

About 2,731 people live in Edwards County, Kansas, spread over 621.894 square miles. Averaged across its land area, Edwards County runs about 4 people per square mile. Among counties sharing Edwards County's EPA zone, it outranks 4% of them by population. Geologically, Edwards County is grouped into EPA Region 7 alongside 411 other counties that share its rock and soil setting.

Zone vs. an actual test

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Edwards County's Zone 2 prediction. Nothing about a Zone 2 label lowers the case for testing in Edwards County — EPA recommends it in every zone, moderate included.

Testing and mitigation in Edwards County

Mitigation cost doesn't depend on Edwards 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 Kansas's state radon program

Edwards County's test kit answers today; a Airthings radon monitor keeps answering for Edwards 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

Edwards 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.