The Yukon-Koyukuk Census Area, Alaska is both the most extensive and the least densely populated county or county-equivalent with 0.0397 persons per square mile (0.0153 km−2) in 2012.
The Yukon-Koyukuk Census Area, Alaska is both the most extensive and the least densely populated county or county-equivalent with 0.0397 persons per square mile (0.0153 km2) in 2012.