Prepared for the U.S. Department of the Interior, Minerals Management Service, Alaska OCS Region, this report describes select socioeconomic and demographic trends and conditions in the sub-regions and communities encompassed by the MMS North Aleutian Basin planning area. The materials are presented as a compendium of an extensive range of social factors and variables that may be examined and analyzed in advance of oil and gas industry activity on the Outer Continental Shelf (OCS) of the North Aleutian Basin (NAB). The study makes clear that the formal economy of the area is based primarily in commercial fisheries and associated services, with few other options for employment; subsistence oriented fishing and hunting are critically important to residents; and participation in subsistence harvest is enabled by participation in the cash economy.