Stanton County, KS: EPA's radon zone, explained

Stanton County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Nationally that's the 67th percentile for radon potential — Stanton County outranks 67% of every county EPA has rated.

How Stanton County compares

Stanton County, Kansas is home to about 2,071 people across 680.352 square miles. That works out to roughly 3 people per square mile. By population, Stanton County is the 1029th largest of every county sharing its EPA zone — the 3rd percentile by population within that zone. EPA's geology-based Region 7 groups Stanton County with 411 other counties nationally sharing its underlying rock and soil profile.

What this actually means for a house in Stanton County

Where the national indoor average runs about 1.3 pCi/L, Stanton County's Zone 1 rating puts its predicted county average above EPA's 4 pCi/L action level itself. A Zone 1 rating means testing is worth doing sooner rather than later, but it is still county-wide average, not a reading for any single house — some homes in Stanton County will test well under the action level, and EPA's guidance is to test regardless of zone.

If Stanton County tests above the action level

For a Stanton County homeowner, the order is simple: test first, since a kit costs a small fraction of what mitigation would. Only if the result clears 4 pCi/L does a system — typically $800–$2,500, about $1,200 for a common install — become worth pricing out.

Find Kansas's state radon program

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

Where Stanton County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Stanton County's numbers. Whatever zone Stanton County carries, the zone explainer covers what it does and doesn't tell you about any one house.