Daggett County, UT radon potential

Daggett 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 that's the 33rd percentile for radon potential — Daggett County outranks 33% of every county EPA has rated.

Where Daggett County sits nationally

Daggett County, Utah is home to about 956 people across 696.514 square miles. Averaged across its land area, Daggett County runs about 1 people per square mile. Within its own EPA zone, Daggett County is bigger by population than 1% of the counties that share it. Geologically, Daggett County is grouped into EPA Region 8 alongside 290 other counties that share its rock and soil setting.

What this actually means for a house in Daggett County

Daggett County's predicted average falls between EPA's 4 pCi/L action level and the national indoor average of about 1.3 pCi/L (outdoor air runs roughly 0.4 pCi/L). A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Daggett County — testing is the only way to know an individual home's actual level.

Next steps for a home in Daggett County

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 Utah's state radon program

For Daggett County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Daggett 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 Daggett County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Daggett County's numbers. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.