The Fairbanks North Star Borough is a borough located in the U.S. state of Alaska. As of the 2020 census, the population was 95,665, down from 97,581 in 2010. The borough seat is Fairbanks. The borough's land area is slightly smaller than that of the state of New Jersey.

Fairbanks is a home rule city and the borough seat of the Fairbanks North Star Borough, Alaska, United States. Fairbanks is the largest city in the Interior region of Alaska and the second largest in the state. The 2020 Census put the population of the city proper at 32,515 and the population of the Fairbanks North Star Borough at 95,655, making it the second most populous metropolitan area in Alaska after Anchorage. The Metropolitan Statistical Area encompasses all of the Fairbanks North Star Borough and is the northernmost Metropolitan Statistical Area in the United States, located 196 miles by road south of the Arctic Circle.