Hoonah-Angoon Census Area, AK: EPA's radon zone, explained

Hoonah-Angoon Census Area falls outside what EPA's 1993 radon zone map can rate directly, because its boundaries were redrawn after the map was made — the coverage gaps guide explains exactly which counties this affects and why.

Hoonah-Angoon Census Area by the numbers

Hoonah-Angoon Census Area, Alaska is home to about 2,312 people across 6,559.729 square miles. Population density there runs about 0 people per square mile.

Zone vs. an actual test

Hoonah-Angoon Census Area has no EPA zone to compare against, but the national numbers don't move: 4 pCi/L is still the action level, 1.3 pCi/L the typical indoor reading. EPA's guidance is unchanged by the absence of a zone rating here: test every home, since a zone (where one exists) only describes a county-wide average, never an individual house.

If Hoonah-Angoon Census Area tests above the action level

For a Hoonah-Angoon Census Area 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 Alaska's state radon program

For Hoonah-Angoon Census Area, an ongoing number beats a one-time test - a Airthings radon monitor tracks Hoonah-Angoon 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 Hoonah-Angoon Census Area's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Hoonah-Angoon Census Area is one of a specific, documented set of counties EPA's map predates — the coverage gaps guide names every one.