Yukon–Koyukuk Census Area, Alaska

Yukon–Koyukuk Census Area is a census area in the U.S. state of Alaska. As of the 2020 census, the population was 5,343, down from 5,588 in 2010. With an area of 147842.51 sqmi, it is the largest of any county or county-equivalent in the United States, or slightly larger than the entire state of Montana. It is part of the unorganized borough of Alaska and therefore has no borough seat. Its largest communities are the cities of Galena, in the west, and Fort Yukon, in the northeast.

Geography
According to the U.S. Census Bureau, the census area has 147805 sqmi, of which 145505 sqmi is land and 2300 sqmi (1.6%) is water. The area is slightly larger than the entire U.S. state of Montana, itself the fourth largest state, or the country of Japan, and makes up slightly more than 1/5 of the state of Alaska. The area is bigger than 47 of the other 49 states, with only California and Texas being bigger. Its population density, at undefined PD/sqmi, is the lowest in the United States.

Adjacent boroughs and census areas

 * North Slope Borough, Alaska – north
 * Southeast Fairbanks Census Area, Alaska – southeast
 * Fairbanks North Star Borough, Alaska – southeast
 * Denali Borough, Alaska – southeast
 * Matanuska-Susitna Borough, Alaska – south
 * Bethel Census Area, Alaska – south
 * Kusilvak Census Area, Alaska – west
 * Nome Census Area, Alaska – west
 * Northwest Arctic Borough, Alaska – northwest
 * Yukon Territory, Canada – east

National protected areas

 * Arctic National Wildlife Refuge (part)
 * Mollie Beattie Wilderness (part)
 * Gates of the Arctic National Park and Preserve (part)
 * Gates of the Arctic Wilderness (part)
 * Innoko National Wildlife Refuge
 * Innoko Wilderness
 * Kanuti National Wildlife Refuge
 * Koyukuk National Wildlife Refuge (part)
 * Koyukuk Wilderness (part)
 * Noatak National Preserve
 * Nowitna National Wildlife Refuge
 * Selawik National Wildlife Refuge (part)
 * Selawik Wilderness (part)
 * Steese National Conservation Area
 * White Mountains National Recreation Area
 * Yukon–Charley Rivers National Preserve (part)
 * Yukon Flats National Wildlife Refuge

Demographics
At the 2000 census there were 6,551 people, 2,309 households, and 1,480 families residing in the census area. The population density was square miles (km2) per person. It is the least densely populated county-equivalent of all 3,141 county-equivalents of the United States. There were 3,917 housing units at an average density of undefined /sqmi. The racial makeup of the census area was 24.27% White, 0.09% Black or African American, 70.89% Native American, 0.37% Asian, 0.05% Pacific Islander, 0.43% from other races, and 3.91% from two or more races. 1.19% were Hispanic or Latino of any race. 12.95% reported speaking an Athabaskan language at home; of these 35.26% speak Gwich’in and 10.94% speak Koyukon.

Of the 2,309 households 38.90% had children under the age of 18 living with them, 36.90% were married couples living together, 16.90% had a female householder with no husband present, and 35.90% were non-families. 30.50% of households were one person and 6.20% were one person aged 65 or older. The average household size was 2.81 and the average family size was 3.53.

The age distribution was 35.00% under the age of 18, 8.70% from 18 to 24, 26.90% from 25 to 44, 22.10% from 45 to 64, and 7.30% 65 or older. The median age was 31 years. For every 100 females, there were 118.60 males. For every 100 females age 18 and over, there were 122.60 males.

Cities

 * Allakaket
 * Anvik
 * Bettles
 * Fort Yukon
 * Galena
 * Grayling
 * Holy Cross
 * Hughes
 * Huslia
 * Kaltag
 * Koyukuk
 * McGrath
 * Nenana
 * Nikolai
 * Nulato
 * Ruby
 * Shageluk
 * Tanana

Census-designated places

 * Alatna
 * Arctic Village
 * Beaver
 * Birch Creek
 * Central
 * Chalkyitsik
 * Circle
 * Coldfoot
 * Evansville
 * Flat
 * Four Mile Road
 * Lake Minchumina
 * Livengood
 * Manley Hot Springs
 * Minto
 * New Allakaket
 * Rampart
 * Stevens Village
 * Takotna
 * Venetie
 * Wiseman

Education
School districts include:
 * Alaska Gateway School District
 * Galena City School District
 * Iditarod Area School District
 * Nenana City School District
 * Tanana City School District
 * Yukon Flats School District
 * Yukon–Koyukuk School District