Southeast Fairbanks Census Area, AK: EPA's radon zone, explained

EPA's own radon map rates Southeast Fairbanks Census Area zone 2 - moderate potential, predicting a county-wide average indoor level between 2 and 4 pCi/L. That puts Southeast Fairbanks Census Area in the 37th percentile nationally for radon potential — higher than 37% of the counties EPA has rated.

Where Southeast Fairbanks Census Area sits nationally

Southeast Fairbanks Census Area, Alaska is home to about 7,313 people across 24,839.23 square miles. That works out to roughly 0 people per square mile. By population, Southeast Fairbanks Census Area is the 892nd largest of every county sharing its EPA zone — the 14th percentile by population within that zone. Southeast Fairbanks Census Area falls in EPA Radon Region 10, one of 142 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Neither at the 4 pCi/L action level nor down at the roughly 1.3 pCi/L national indoor norm, Southeast Fairbanks Census Area's Zone 2 prediction lands in the gap between the two. A Zone 2 rating is a moderate county-wide average, not a guarantee about any one house in Southeast Fairbanks Census Area — testing is the only way to know an individual home's actual level.

Next steps for a home in Southeast Fairbanks Census Area

For a Southeast Fairbanks 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 Southeast Fairbanks Census Area, an ongoing number beats a one-time test - a Airthings radon monitor tracks Southeast Fairbanks Census Area'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 Southeast Fairbanks 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. Whatever zone Southeast Fairbanks Census Area carries, the zone explainer covers what it does and doesn't tell you about any one house.