Delta Junction is a city in the Southeast Fairbanks Census Area, Alaska, United States. As of the 2010 census, the population was 958, up from 840 in 2000. The 2016 estimate was down to 934. The city is located a short distance south of the confluence of the Delta River with the Tanana River, which is at Big Delta. It is about 160 km (99 mi) south of Fairbanks. Native inhabitants are Tanana Athabaskans.
Delta Junction is located at 64°2′52″N 145°43′7″W / 64.04778°N 145.71861°W / 64.04778; -145.71861 (64.047669, −145.718655).
According to the United States Census Bureau, the city has a total area of 17.3 square miles (45 km), all of it land.
“Big Delta” lies at the intersection of the Delta River and the Tanana River. The city of Delta Junction sits on the Delta River at the intersection of the Richardson Highway and the famed Alaska Highway (actually, the end of the Alaska Highway). The city and Delta community lie within the fertile Tanana River valley. Three mountain ranges—the White Mountains to the north, the Granite Mountains to the southeast, and the Alaska Range to the southwest—and the Delta River to the west surround the city.
Once overlain by glaciers, the geology is marked by glacial moraines as well as alluvial deposits from the Delta and Tanana Rivers. Numerous mineral deposits are found in the vicinity of Delta Junction ranging from gold to molybdenum to coal. A prominent natural feature on the landscape is Donnelly Dome, located within the Donnelly Training Area of Fort Wainwright (formerly a part of nearby Fort Greely until 2001), to the south of Delta Junction. This dome was formed as a glacier coming from the Alaska Range split in two, carving away sides of a former mountain.
Delta Junction first appeared on the 1970 U.S. Census as an incorporated city (despite having been incorporated in 1960).
As of the census of 2000, there were 840 people, 312 households, and 208 families residing in the city. The population density was 48.7 people per square mile (18.8/km²). There were 422 housing units at an average density of 24.4 per square mile (9.4/km²). The racial makeup of the city was 91.43% White, 1.07% Black or African American, 4.05% Native American, 0.95% Asian, 0.12% from other races, and 2.38% from two or more races. 0.83% of the population were Hispanic or Latino of any race.
Delta Junction has the highest percentage of Ukrainian people in the United States, with 16.4% of residents having been born in Ukraine and an even higher total number having Ukrainian ancestry. According to the 2000 Census, 19.64% of the general population and 31.10% of those aged 5–17 used either Russian or Ukrainian as home language.
Of the 312 households 35.6% had children under the age of 18 living with them, 52.6% were married couples living together, 9.0% had a female householder with no husband present, and 33.3% were non-families. 28.8% of all households were made up of individuals and 6.4% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.32.
In the city, the age distribution of the population shows 32.6% under the age of 18, 6.5% from 18 to 24, 26.5% from 25 to 44, 26.5% from 45 to 64, and 7.7% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 112.1 males. For every 100 females age 18 and over, there were 109.6 males.
The median income for a household in the city was $43,500, and the median income for a family was $58,250. Males had a median income of $50,469 versus $25,750 for females. The per capita income for the city was $19,171. About 12.3% of families and 19.4% of the population were below the poverty line, including 28.8% of those under age 18 and 13.2% of those age 65 or over.