Aleutians West Census Area, AK radon potential

EPA's own radon map rates Aleutians West Census Area zone 3 - low potential, predicting a county-wide average indoor level below 2 pCi/L. Aleutians West Census Area sits at the 3rd percentile nationally for radon potential — above 3 of every 100 rated counties.

Aleutians West Census Area by the numbers

Aleutians West Census Area, Alaska is home to about 5,424 people across 4,387.37 square miles. That works out to roughly 1 people per square mile. Within its own EPA zone, Aleutians West Census Area is bigger by population than 9% of the counties that share it. Aleutians West Census Area falls in EPA Radon Region 10, one of 142 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

A Zone 3 county like Aleutians West Census Area is predicted closer to the 0.4 pCi/L typical outdoors than to EPA's 4 pCi/L action level. Even at Zone 3, Aleutians West Census Area homes are not guaranteed a low reading — zone is a county-wide average, and EPA recommends testing every home regardless of zone.

Testing and mitigation in Aleutians West Census Area

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 Alaska's state radon program

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

Where Aleutians West Census Area's figures come from

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