Baca County, CO radon potential

EPA's own radon map rates Baca County zone 1 - highest potential, predicting a county-wide average indoor level above 4 pCi/L. Nationally that's the 69th percentile for radon potential — Baca County outranks 69% of every county EPA has rated.

Baca County by the numbers

Baca County, Colorado is home to about 3,367 people across 2,554.993 square miles. That works out to roughly 1 people per square mile. Within its own EPA zone, Baca County is bigger by population than 9% of the counties that share it. Baca County falls in EPA Radon Region 8, one of 291 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Baca County

Outdoor air nationally averages about 0.4 pCi/L, indoor air about 1.3 pCi/L — Baca County's Zone 1 prediction clears both of those and EPA's fix-it threshold besides. 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 Baca County will test well under the action level, and EPA's guidance is to test regardless of zone.

Testing and mitigation in Baca 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 Colorado's state radon program

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

Where Baca County's figures come from

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