Is York County, NE a radon risk area?

York County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. York County sits at the 78th percentile nationally for radon potential — above 78 of every 100 rated counties.

How York County compares

About 14,375 people live in York County, Nebraska, spread over 572.516 square miles. Population density there runs about 25 people per square mile. Rank 675 by population within its EPA zone puts York County at the 37th percentile among zone peers. EPA's geology-based Region 7 groups York County with 411 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

York County's predicted average sits above EPA's own action level of 4 pCi/L — the concentration at which EPA recommends fixing a home — versus a national average around 1.3 pCi/L indoors and 0.4 pCi/L outdoors. Being in Zone 1 raises the odds York County homes test above the action level, but it does not mean any specific house does — EPA recommends every home be tested, in every zone, because the only way to know is to test.

Next steps for a home in York County

Nothing about York County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Nebraska's state radon program

York County's test kit answers today; a Airthings radon monitor keeps answering for York County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

More on how this number was built

The methodology guide shows exactly which EPA and Census sources feed York County's numbers. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.