Counties in Alaska by population under 18

Kusilvak Census Area had the highest population under 18 of 30 counties in 2015, at 40.7%. Aleutians East Borough had the lowest, at 9.6%. The median was 23.4% and the figure for Alaska was 25.2%. Source: the U.S. Census Bureau.

Highest40.7Kusilvak Census Area

Lowest9.6Aleutians East Borough

Median23.430 counties

Alaska25.2History

Map of counties, 2015

Under 19
19 to 22
22 to 23
23 to 25
25 to 28
28 and over

%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2015

%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2015 (%)	Change on 2014
1	Kusilvak Census Area	40.7	-0.5 pts
2	Bethel Census Area	36.1	0 pts
3	Northwest Arctic Borough	35.5	-0.4 pts
4	Nome Census Area	34.3	-0 pts
5	Dillingham Census Area	30.9	-0.4 pts
6	Lake and Peninsula Borough	27.9	-0.2 pts
7	Matanuska-Susitna Borough	27.7	0 pts
8	Yukon-Koyukuk Census Area	26.9	-0.3 pts
9	Kodiak Island Borough	26.2	-0.5 pts
10	North Slope Borough	25.8	+0.2 pts
11	Southeast Fairbanks Census Area	24.9	+0.2 pts
12	Prince of Wales-Hyder Census Area	24.8	-0.1 pts
13	Anchorage Municipality	24.6	-0.3 pts
14	Fairbanks North Star Borough	24.4	0 pts
15	Copper River Census Area	23.7	-0.6 pts
16	Chugach Census Area	23.2	-0.4 pts
17	Kenai Peninsula Borough	22.7	-0.1 pts
18	Ketchikan Gateway Borough	22.7	-0.4 pts
19	Sitka City and Borough	22.3	-0.3 pts
20	Petersburg Borough	22.3	+0.3 pts
21	Juneau City and Borough	22.2	-0 pts
22	Bristol Bay Borough	20.4	+0.1 pts
23	Denali Borough	20.4	-0.3 pts
24	Hoonah-Angoon Census Area	20.4	+0.3 pts
25	Yakutat City and Borough	19.5	-0.4 pts
26	Wrangell City and Borough	19.2	-0.9 pts
27	Haines Borough	18.2	-0 pts
28	Skagway Municipality	16.9	+1.5 pts
29	Aleutians West Census Area	12.1	-0.1 pts
30	Aleutians East Borough	9.6	-0.1 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, 2015) [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, 2015. 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=2015. 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, 2015. 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=2015.

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, 2015 [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=2015 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_alaska_by_2015,
  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, 2015}},
  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=2015. 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, 2015
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=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/alaska-counties?period=2015.
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 2015, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Aleutians East Borough, with 9.6% in 2015.

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.