| Official Name: | Koyuk |
| Settlement Type: | City |
| Pushpin Map: | USA Alaska |
| Pushpin Map Caption: | Location in Alaska |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Alaska |
| Subdivision Type2: | Census Area |
| Subdivision Name2: | Nome |
| Leader Title: | Mayor |
| Leader Name: | Darin Douglas, Sr.[1] |
| Leader Title1: | State senator |
| Leader Name1: | Donald Olson (D) |
| Leader Title2: | State rep. |
| Leader Name2: | Neal Foster (D) |
| Established Title: | Incorporated |
| Established Date: | October 19, 1970[2] |
| Area Footnotes: | [3] |
| Area Total Km2: | 13.21 |
| Area Land Km2: | 13.21 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 5.10 |
| Area Land Sq Mi: | 5.10 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 312 |
| Population Density Km2: | 23.61 |
| Population Density Sq Mi: | 61.15 |
| Timezone: | Alaska (AKST) |
| Utc Offset: | -9 |
| Timezone Dst: | AKDT |
| Utc Offset Dst: | -8 |
| Elevation M: | 10 |
| Elevation Ft: | 33 |
| Coordinates: | 64.9311°N -161.1586°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 99753 |
| Area Code: | 907 |
| Area Code Type: | Area code |
| Blank Name: | FIPS code |
| Blank Info: | 02-41940 |
| Blank1 Name: | GNIS feature ID |
| Unit Pref: | Imperial |
Koyuk (ik|Kuuyuk) is a city in the Nome Census Area, Alaska, United States. The population was 332 at the 2010 census, up from 297 in 2000.
Koyuk is located at 64.9311°N -161.1586°W (64.931099, -161.158480).[4] The village is located on the northern bank of the Koyuk River where it drains into Norton Bay.
According to the United States Census Bureau, the city has a total area of 4.7sqmi, all of it land.
Koyuk first appeared on the 1930 U.S. Census as an unincorporated village. It formally incorporated in 1970.
As of the census[5] of 2000, there were 297 people, 80 households, and 59 families residing in the city. The population density was 62.7sp=usNaNsp=us. There were 95 housing units at an average density of 20.1sp=usNaNsp=us. The racial makeup of the city was 4.71% White, 91.92% Native American, 0.67% Asian, and 2.69% from two or more races.
Of the 80 households, 53.8% had children under the age of 18 living with them, 35.0% were married couples living together, 18.8% had a female householder with no husband present, and 26.3% were non-families. 21.3% of all households were made up of individuals, and 2.5% had someone living alone who was 65 years of age or older. The average household size was 3.71 and the average family size was 4.31.
In the city, the age distribution of the population shows 41.8% under the age of 18, 8.8% from 18 to 24, 30.0% from 25 to 44, 16.5% from 45 to 64, and 3.0% who were 65 years of age or older. The median age was 25 years. For every 100 females, there were 121.6 males. For every 100 females age 18 and over, there were 127.6 males.
The median income for a household in the city was $30,417, and the median income for a family was $20,625. Males had a median income of $25,625 versus $11,563 for females. The per capita income for the city was $8,736. About 29.3% of families and 28.0% of the population were below the poverty line, including 39.7% of those under the age of eighteen and 25.0% of those 65 or over.
Koyuk is served by the Bering Strait School District. Koyuk-Malimiut School serves grades Pre-K through 12.