The North Slope Borough is the northernmost borough in the US state of Alaska and, thus, the northernmost county or equivalent of the United States as a whole. As of the 2020 census, the population was 11,031. The borough seat and largest city, comprising nearly 1/2 of the borough’s population, is Utqiaġvik (known as Barrow from 1901 to 2016), the northernmost settlement in the United States.

The borough was established in 1972 by an election of the majority Indigenous people in the region, following Congressional passage of the Alaska Native Claims Settlement Act. Most are Inupiat. The borough was named for the Alaska North Slope basin. In 1974, it adopted a Home Rule Charter, enabling it to exercise any legitimate governmental power. The borough has first-class status and exercises the powers of planning, zoning, taxation, and schools.

In 2020, the airline Ravn Alaska went into bankruptcy and ended operations. The government of North Slope Borough attempted to take control of the airline's assets to keep flights and shipments coming to the community, but the Alaska Attorney General stated that the borough did not have that authority.

The borough is governed by an eleven-member assembly, elected to staggered three-year terms, which meets monthly. Representation on the assembly is apportioned among the various communities; Barrow is allotted six seats, Nuiqsut, Point Hope, and Wainwright one seat apiece, while the remaining two seats combine two communities; Anaktuvuk Pass with Kaktovik and Atqasuk with Point Lay. The borough's executive and administrative powers are vested in a mayor, who is limited to two consecutive three-year terms.

• 1972–1980: Eben Hopson (died in office)
• 1980–1981: Jacob Anaġi Adams, Sr.
• 1981–1984: Eugene Brower
• 1984–1990: George Ahmaogak, Sr.
• 1990–1993: Jeslie Kaleak
• 1993–1996: George Ahmaogak, Sr.
• 1996–1999: Benjamin Nageak
• 1999–2005: George Ahmaogak, Sr.
• 2005–2011: Edward Itta
• 2011–2016: Charlotte Brower
• 2016–2023: Harry Brower, Jr.
• 2023–present: Josiah Patkotak

United States presidential election results for North Slope Borough

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2020	1,197	47.92%	1,134	45.40%	167	6.69%
2016	802	34.58%	1,090	47.00%	427	18.41%
2012	735	32.92%	1,407	63.01%	91	4.08%
2008	1,252	52.69%	1,041	43.81%	83	3.49%
2004	1,171	57.68%	767	37.78%	92	4.53%
2000	1,485	57.99%	843	32.92%	233	9.10%
1996	949	43.10%	927	42.10%	326	14.80%
1992	666	35.02%	763	40.12%	473	24.87%
1988	916	53.32%	713	41.50%	89	5.18%
1984	929	60.09%	575	37.19%	42	2.72%
1980	507	43.59%	460	39.55%	196	16.85%
1976	339	32.85%	655	63.47%	38	3.68%
1972	325	35.10%	560	60.48%	41	4.43%
1968	473	34.91%	690	50.92%	192	14.17%
1964	243	23.55%	789	76.45%	0	0.00%
1960	348	39.55%	532	60.45%	0	0.00%

Former mayor Eugene Brower, Charlotte Brower's husband, was convicted of tax evasion involving contractor kickbacks in the 1980s.

Former mayor George Ahmaogak had billed the Borough for a family vacation in Hawaii. His wife, Maggie, was later convicted of embezzlement by the Alaska Eskimo Whaling Commission in 2015.

Edward Itta succeeded George Ahmaogak and served two terms, 2005–2011. In 2011, Charlotte Brower defeated Ahmaogak in a runoff election after his Hawaii vacation was revealed. She was recalled in April 2016, after it was reported the year before that her office had made numerous donations to individuals (including family members), sports clubs, and other groups that amounted to more than $800,000 since 2011.

In July 2016, Harry K. Brower Jr., Charlotte Brower's brother-in-law, was first elected in a run-off election to serve the rest of Charlotte Brower's second term.

Harry K. Brower Jr. ran for a full term as mayor in October 2017 but was forced into a November runoff against his nephew, Frederick Brower, where he easily won a full 3-year term.

According to the United States Census Bureau, the borough has a total area of 94,796 square miles (245,520 km), of which 88,695 square miles (229,720 km) is land and 6,101 square miles (15,800 km) (6.4%) is water. The borough is larger than 39 states.

Its western coastline is along the Chukchi Sea, while its eastern shores (beyond Point Barrow) are on the Beaufort Sea.

The North Slope Borough is the largest county-level political subdivision in the United States by area, with a larger land area than the state of Utah, 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 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.

• Yukon-Koyukuk Census Area, Alaska – southeast
• Northwest Arctic Borough, Alaska – southwest

It shares its eastern border with Yukon, Canada, which has no subdivisions.

• Alaska Maritime National Wildlife Refuge (part of the Chukchi Sea unit)
  • Cape Lisburne
  • Cape Thompson
• Arctic National Wildlife Refuge (part)
  • Mollie Beattie Wilderness (part)
• Gates of the Arctic National Park and Preserve (part)
  • Gates of the Arctic Wilderness (part)
• Noatak National Preserve (part)
  • Noatak Wilderness (part)

• National Petroleum Reserve–Alaska

Historical population

Census	Pop.	Note	%±
1960	2,133		—
1970	2,663		24.8%
1980	4,199		57.7%
1990	5,979		42.4%
2000	7,385		23.5%
2010	9,430		27.7%
2020	11,031		17.0%
2023 (est.)	10,603		−3.9%
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2020

As of the census of 2020, the borough had 11,031 people and 1,979 households. The population density was 0.12 inhabitants per square mile (0.046/km). There were 2,631 housing units at an average density of 0.03 inhabitants per square mile (0.012/km). The racial makeup of the borough was 53.2% Native American or Alaska Native, 32.7% White, 4.3% Hispanic or Latino, 1.8% Native Hawaiian or Pacific Islander, 1.6% African American, and 5.3% were from two or more races. 4.6% of the population were veterans, and 6.3% were born outside of the United States. The average household size was 3.36 people. 7.9% of the population were under the age of 5, 26.8% were under the age of 18, 65.7% were between the ages of 18 and 64, and 7.5% were aged 65 or older. 62.4% of the population were male and 37.6% were female. 86.2% of households contained a computer, with 69.8% of households having a broadband Internet connection. 89.7% of the population had a high school diploma or higher, with 16.5% having a Bachelor's degree or higher. 79.0% of the population were in the civilian labor force. (72.8% of women) The median household income was $79,306, with the average per capita income from May 2019 to April 2020 being $48,730. 11.4% of the population were in poverty.

As of the census of 2010, 9,430 people, 2,109 households, and 1,524 families residing in the borough. The population density was 12.03 square miles (31.2 km) per person. There were 2,538 housing units at an average density of 35 square miles (91 km) per unit. The racial makeup of the borough was 33.37% White, 1% Black or African American, 54.08% Native American (mostly Iñupiat), 4.51% Asian, 1.1% Pacific Islander, 0.71% from other races, and 5.23% from two or more races. 2.64% of the population was Hispanic or Latino of any race. 42.84% reported speaking Iñupiaq or "Eskimo" at home, while 4.21% reported speaking Tagalog.

As of the census of 2000, there were 7,385 people. The racial makeup was 17.09% White, 0.72% Black or African American, 68.38% Native American (mostly Iñupiat), 5.92% Asian, 0.84% Pacific Islander, 0.50% from other races, and 6.55% from two or more races. 2.37% of the population was Hispanic or Latino of any race.

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 comprised individuals, and 1.9% had someone who was 65 or older living alone. The average household size was 3.45, and the average family size was 4.05.

The borough's population was spread out, with 38.2% under 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 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.

Races (alone or in combination with others) in North Slope Borough (2020 United States Census)

Race	Percentage of population
White	34.97%
Black or African American	2.28%
American Indian or Alaska Native	57.76%
Asian	7.03%
Native Hawaiian and Other Pacific Islander	4.12%
Some other race	3.40%

Top ten most self-reported ancestries in North Slope Borough (American Community Survey 2020 five-year estimates)

Ancestry	Percentage of population
Iñupiat	50.72%
Alaska Native tribes, not specified	5.82%
Filipino	5.21%
Black or African American	3.78%
Samoan	2.85%
Irish	2.45%
German	1.95%
Mexican	1.40%
Alaskan Athabaskan	0.94%
Native Hawaiian	0.78%
European	0.75%

"Among all North Slope Borough communities, a higher percentage of Nuiqsut households use subsistence resources for more than half of their diet."

• Anaktuvuk Pass
• Atqasuk
• Kaktovik
• Nuiqsut
• Point Hope
• Utqiagvik (Borough seat)
• Wainwright

• Point Lay
• Prudhoe Bay

• Alpine
• Deadhorse
• Sagwon
• Umiat

The borough has a single school district: North Slope Borough School District. It is also the largest school district in the United States by area, totaling 229,731 km (88,700 sq mi)

• Eskimo
• List of airports in Alaska
• Nalukataq
• Thetis Mound

• Official website
• Borough map, 2000 census: Alaska Department of Labor
• Borough map, 2010 census: Alaska Department of Labor

69°18′N 153°27′W / 69.30°N 153.45°W / 69.30; -153.45