Data / Rankings / Population under 18 / Counties in Alaska

Counties in Alaska by population under 18

Kusilvak Census Area had the highest population under 18 of 30 counties in 2019, at 40.7%. Aleutians East Borough had the lowest, at 8.5%. The median was 22.8% and the figure for Alaska was 24.6%. Source: the U.S. Census Bureau.

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Highest40.7Kusilvak Census Area
Lowest8.5Aleutians East Borough
Median22.830 counties
Alaska24.6History

Map of counties, 2019

Aleutians East Borough: 8.5 %Aleutians West Census Area: 12 %Anchorage Municipality: 23.7 %Bethel Census Area: 35.5 %Bristol Bay Borough: 21.7 %Chugach Census Area: 22.8 %Copper River Census Area: 22.8 %Denali Borough: 22.1 %Dillingham Census Area: 31.3 %Fairbanks North Star Borough: 24 %Haines Borough: 18.9 %Hoonah-Angoon Census Area: 21.2 %Juneau City and Borough: 21.5 %Kenai Peninsula Borough: 21.9 %Ketchikan Gateway Borough: 22.4 %Kodiak Island Borough: 24.8 %Kusilvak Census Area: 40.7 %Lake and Peninsula Borough: 28.5 %Matanuska-Susitna Borough: 27.1 %Nome Census Area: 33 %North Slope Borough: 25.9 %Northwest Arctic Borough: 35.7 %Petersburg Borough: 20.2 %Prince of Wales-Hyder Census Area: 24.1 %Sitka City and Borough: 20.4 %Skagway Municipality: 20.3 %Southeast Fairbanks Census Area: 23 %Wrangell City and Borough: 19 %Yakutat City and Borough: 18.5 %Yukon-Koyukuk Census Area: 26.1 %
  • Under 20
  • 20 to 22
  • 22 to 23
  • 23 to 24
  • 24 to 29
  • 29 and over
%, 2019. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2019

Kusilvak Census Area: 40.7 %Kusilvak Census Area40.7Northwest Arctic Borough: 35.7 %Northwest Arctic Borough35.7Bethel Census Area: 35.5 %Bethel Census Area35.5Nome Census Area: 33 %Nome Census Area33Dillingham Census Area: 31.3 %Dillingham Census Area31.3Lake and Peninsula Borough: 28.5 %Lake and Peninsula Borough28.5Matanuska-Susitna Borough: 27.1 %Matanuska-Susitna Borough27.1Yukon-Koyukuk Census Area: 26.1 %Yukon-Koyukuk Census Area26.1North Slope Borough: 25.9 %North Slope Borough25.9Kodiak Island Borough: 24.8 %Kodiak Island Borough24.8Prince of Wales-Hyder Census Area: 24.1 %Prince of Wales-Hyder Census Area24.1Fairbanks North Star Borough: 24 %Fairbanks North Star Borough24Anchorage Municipality: 23.7 %Anchorage Municipality23.7Southeast Fairbanks Census Area: 23 %Southeast Fairbanks Census Area23Chugach Census Area: 22.8 %Chugach Census Area22.8Copper River Census Area: 22.8 %Copper River Census Area22.8Ketchikan Gateway Borough: 22.4 %Ketchikan Gateway Borough22.4Denali Borough: 22.1 %Denali Borough22.1Kenai Peninsula Borough: 21.9 %Kenai Peninsula Borough21.9Bristol Bay Borough: 21.7 %Bristol Bay Borough21.7Juneau City and Borough: 21.5 %Juneau City and Borough21.5Hoonah-Angoon Census Area: 21.2 %Hoonah-Angoon Census Area21.2Sitka City and Borough: 20.4 %Sitka City and Borough20.4Skagway Municipality: 20.3 %Skagway Municipality20.3Petersburg Borough: 20.2 %Petersburg Borough20.2Wrangell City and Borough: 19 %Wrangell City and Borough19Haines Borough: 18.9 %Haines Borough18.9Yakutat City and Borough: 18.5 %Yakutat City and Borough18.5Aleutians West Census Area: 12 %Aleutians West Census Area12Aleutians East Borough: 8.5 %Aleutians East Borough8.5Kusilvak Census Area: 40.7 %Kusilvak Census Area40.7Northwest Arctic Borough: 35.7 %Northwest Arctic Borough35.7Bethel Census Area: 35.5 %Bethel Census Area35.5Nome Census Area: 33 %Nome Census Area33Dillingham Census Area: 31.3 %Dillingham Census Area31.3Lake and Peninsula Borough: 28.5 %Lake and Peninsula Borough28.5Matanuska-Susitna Borough: 27.1 %Matanuska-Susitna Borough27.1Yukon-Koyukuk Census Area: 26.1 %Yukon-Koyukuk Census Area26.1North Slope Borough: 25.9 %North Slope Borough25.9Kodiak Island Borough: 24.8 %Kodiak Island Borough24.8Prince of Wales-Hyder Census Area: 24.1 %Prince of Wales-Hyder Census Area24.1Fairbanks North Star Borough: 24 %Fairbanks North Star Borough24Anchorage Municipality: 23.7 %Anchorage Municipality23.7Southeast Fairbanks Census Area: 23 %Southeast Fairbanks Census Area23Chugach Census Area: 22.8 %Chugach Census Area22.8Copper River Census Area: 22.8 %Copper River Census Area22.8Ketchikan Gateway Borough: 22.4 %Ketchikan Gateway Borough22.4Denali Borough: 22.1 %Denali Borough22.1Kenai Peninsula Borough: 21.9 %Kenai Peninsula Borough21.9Bristol Bay Borough: 21.7 %Bristol Bay Borough21.7Juneau City and Borough: 21.5 %Juneau City and Borough21.5Hoonah-Angoon Census Area: 21.2 %Hoonah-Angoon Census Area21.2Sitka City and Borough: 20.4 %Sitka City and Borough20.4Skagway Municipality: 20.3 %Skagway Municipality20.3Petersburg Borough: 20.2 %Petersburg Borough20.2Wrangell City and Borough: 19 %Wrangell City and Borough19Haines Borough: 18.9 %Haines Borough18.9Yakutat City and Borough: 18.5 %Yakutat City and Borough18.5Aleutians West Census Area: 12 %Aleutians West Census Area12Aleutians East Borough: 8.5 %Aleutians East Borough8.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2019 (%)Change on 2018
1Kusilvak Census Area40.7+0.4 pts
2Northwest Arctic Borough35.7+0.4 pts
3Bethel Census Area35.5-0.1 pts
4Nome Census Area33-0.7 pts
5Dillingham Census Area31.30 pts
6Lake and Peninsula Borough28.5+0.4 pts
7Matanuska-Susitna Borough27.1-0.2 pts
8Yukon-Koyukuk Census Area26.1+0.1 pts
9North Slope Borough25.9-0.1 pts
10Kodiak Island Borough24.8-0.4 pts
11Prince of Wales-Hyder Census Area24.1-0.4 pts
12Fairbanks North Star Borough24-0.4 pts
13Anchorage Municipality23.7-0.3 pts
14Southeast Fairbanks Census Area23-1.3 pts
15Chugach Census Area22.8+0.2 pts
16Copper River Census Area22.8+0.5 pts
17Ketchikan Gateway Borough22.4-0.2 pts
18Denali Borough22.1+1.2 pts
19Kenai Peninsula Borough21.9-0.2 pts
20Bristol Bay Borough21.7-0 pts
21Juneau City and Borough21.5-0.3 pts
22Hoonah-Angoon Census Area21.2+0.3 pts
23Sitka City and Borough20.4-0.8 pts
24Skagway Municipality20.3+0.5 pts
25Petersburg Borough20.2-1.1 pts
26Wrangell City and Borough19-0.4 pts
27Haines Borough18.9+1.3 pts
28Yakutat City and Borough18.5+0.7 pts
29Aleutians West Census Area12+0.5 pts
30Aleutians East Borough8.5-0.8 pts

Other periods

About this ranking

Residents aged 0 to 17 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Uses the US age of majority. Not comparable with population_0_14_share, which stops at 14.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Alaska by population under 18, 2019) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Alaska by population under 18, 2019. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Alaska by population under 18, 2019. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Alaska by population under 18, 2019 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_alaska_by_2019,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Alaska by population under 18, 2019}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Alaska by population under 18, 2019
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/alaska-counties?period=2019.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population under 18?

Kusilvak Census Area, with 40.7% in 2019, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Aleutians East Borough, with 8.5% in 2019.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population under 18: other rankings

Counties in Alaska: more rankings