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.