Since 2011 the mayor is Charlotte Brower. She was re-elected in 2014. In 2015 she was fined by the Alaska Public Offices Commission for campaign finance violations. Her office is currently under investigation for donation policy violations. Her husband, Eugene Brower, was mayor in the 1980s before pleading guilty to tax evasion.
According to the U.S. Census Bureau, the borough has a total area of 94,796 square miles (245,520 km2), of which 88,695 square miles (229,720 km2) is land and 6,101 square miles (15,800 km2) (6.4%) is water. The borough is larger than 39 states.
The North Slope Borough is the largest county-level political subdivision in the United States by area, with a larger land area than that of the state of Utah (itself the 13th largest state in the nation). Although the adjacent Yukon-Koyukuk Census Area is larger in area, it has no borough-level government. The borough is also the fourth-least densely populated county-level entity in the United States (the Yukon-Koyukuk Census Area is the least densely populated county-level entity).
There were 2,109 households out of which 48.10% had children under the age of 18 living with them, 43.3% were married couples living together, 18.3% had a female householder with no husband present, and 27.70% were non-families. 21.4% of all households were made up of individuals and 1.9% had someone living alone who was 65 years of age or older. The average household size was 3.45 and the average family size was 4.05.
In the borough the population was spread out with 38.2% under the age of 18, 9.50% from 18 to 24, 30.1% from 25 to 44, 18.10% from 45 to 64, and 4.2% who were 65 years of age or older. The median age was 27 years. For every 100 females there were 112.50 males. For every 100 females age 18 and over, there were 113.90 males.