Hollis, Alaska  Hollis is a census-designated place (CDP) in Prince of Wales-Hyder Census Area, Alaska, United States. At the 2010 census the population was 112, down from 139 in 2000. Hollis is located at (55.484404, -132.715921). According to the United States Census Bureau, the CDP has a total area of , of which, of it is land and of it (2.15%) is water. Hollis has an oceanic climate (Köppen "Cfb"). Hollis first appeared on the 1960 U.S. Census as an unincorporated community. It did not appear again until 1990, when it was made a census-designated place (CDP). As of the census of 2000, there were 139 people, 55 households, and 38 families residing in the CDP. The population density was 2.2 people per square mile (0.8/km²). There were 95 housing units at an average density of 1.5/sq mi (0.6/km²). The racial makeup of the CDP was 89.93% White, 5.04% Native American, 0.72% Asian, and 4.32% from two or more races. 2.16% of the population were Hispanic or Latino of any race. There were 55 households out of which 36.4% had children under the age of 18 living with them, 60.0% were married couples living together, 3.6% had a female householder with no husband present, and 30.9% were non-families. 23.6% of all households were made up of individuals and 12.7% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.00. In the CDP, the population was spread out with 28.8% under the age of 18, 4.3% from 18 to 24, 25.9% from 25 to 44, 32.4% from 45 to 64, and 8.6% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 131.7 males. For every 100 females age 18 and over, there were 141.5 males. The median income for a household in the CDP was $43,750, and the median income for a family was $55,625.