Is Morgan County, CO a radon risk area?

Morgan County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. That puts Morgan County in the 85th percentile nationally for radon potential — higher than 85% of the counties EPA has rated.

How Morgan County compares

About 30,300 people live in Morgan County, Colorado, spread over 1,280.493 square miles. Averaged across its land area, Morgan County runs about 24 people per square mile. Rank 468 by population within its EPA zone puts Morgan County at the 56th percentile among zone peers. Geologically, Morgan County is grouped into EPA Region 8 alongside 290 other counties that share its rock and soil setting.

Why the zone isn't the answer by itself

Fixing a home becomes an EPA recommendation past 4 pCi/L, and that is precisely the side of the line Morgan County's Zone 1 prediction lands on, well above the roughly 1.3 pCi/L most US homes average. Being in Zone 1 raises the odds Morgan 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.

Testing and mitigation in Morgan County

Nothing about Morgan 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 Colorado's state radon program

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

More on how this number was built

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.