# Counties in Alaska by population under 18, 2025

All 30 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population_0_17_share`
- Unit: %
- Definition: 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.
- Source: 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: 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.
- Web page: https://invokely.ai/rankings/population-under-18/alaska-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Kusilvak Census Area | 41.4 |
| 2 | Northwest Arctic Borough | 36.7 |
| 3 | Bethel Census Area | 35.2 |
| 4 | Nome Census Area | 31.9 |
| 5 | Dillingham Census Area | 29.6 |
| 6 | Lake and Peninsula Borough | 27.6 |
| 7 | Matanuska-Susitna Borough | 25.3 |
| 8 | Yukon-Koyukuk Census Area | 25.2 |
| 9 | Southeast Fairbanks Census Area | 25 |
| 10 | North Slope Borough | 23 |
| 11 | Kodiak Island Borough | 22.9 |
| 12 | Prince of Wales-Hyder Census Area | 22.6 |
| 13 | Fairbanks North Star Borough | 22.6 |
| 14 | Anchorage Municipality | 22.5 |
| 15 | Copper River Census Area | 22 |
| 16 | Chugach Census Area | 21.6 |
| 17 | Kenai Peninsula Borough | 21.3 |
| 18 | Ketchikan Gateway Borough | 20 |
| 19 | Petersburg Borough | 19.6 |
| 20 | Juneau City and Borough | 19.5 |
| 21 | Denali Borough | 19.4 |
| 22 | Hoonah-Angoon Census Area | 19.3 |
| 23 | Bristol Bay Borough | 19.1 |
| 24 | Wrangell City and Borough | 18.7 |
| 25 | Sitka City and Borough | 18.6 |
| 26 | Haines Borough | 17.4 |
| 27 | Yakutat City and Borough | 17 |
| 28 | Skagway Municipality | 14.2 |
| 29 | Aleutians West Census Area | 8.6 |
| 30 | Aleutians East Borough | 6.6 |