Ruby is an incorporated town in central western Alaska, situated on the south bank of the Yukon River at the northwestern-most tip of the Nowitna National Wildlife Refuge. It is accessible only by boat or air. A formerly sizeable gold-mining and lumbering town servicing the region, at the 2010 census the population was just 166, with only a general store and post office remaining as businesses, down from 188 in 2000.
Ruby is located at 64°44′14″N 155°29′16″W / 64.73722°N 155.48778°W / 64.73722; -155.48778 (64.737306, -155.487693).
According to the United States Census Bureau, the city has a total area of 7.6 square miles (20 km).
Ruby first appeared on the 1920 U.S. Census as an unincorporated village. It formally incorporated in 1973.
As of the census of 2000, there were 188 people, 68 households, and 42 families residing in the city. The population density was 24.9 people per square mile (9.6/km²). There were 107 housing units at an average density of 14.2 per square mile (5.5/km²). The racial makeup of the city was 82.98% Native American, 13.83% White, and 3.19% from two or more races.
There were 68 households out of which 44.1% had children under the age of 18 living with them, 35.3% were married couples living together, 16.2% had a female householder with no husband present, and 38.2% were non-families. 32.4% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.55.
In the city, the age distribution of the population shows 37.8% under the age of 18, 8.0% from 18 to 24, 23.4% from 25 to 44, 25.5% from 45 to 64, and 5.3% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 111.2 males. For every 100 females age 18 and over, there were 108.9 males.
The median income for a household in the city was $24,375, and the median income for a family was $26,667. Males had a median income of $21,250 versus $24,167 for females. The per capita income for the city was $9,544. 32.3% of the population and 23.8% of families were below the poverty line. 45.3% of those under the age of 18 are living below the poverty line.
Ruby Alaska neighborhoods include: Anchorage, Anchor Point, Chiniak, Chugiak, Clam Gulch, Cooper Landing, Delta Junction, Douglas, Eagle River, Eielson Afb, Elmendorf Afb, Fairbanks, Fort Richardson, Girdwood, Haines, Homer, Indian, Juneau, Kasilof, Kenai, Ketchikan, Kodiak, Metlakatla, Moose Pass, Nikolaevsk, Ninilchik, North Pole, Salcha, Seward, Sitka, Soldotna, Sterling, Tyonek, Wasilla