Which counties in Alaska are people leaving?

21 of the 28 ranked counties in Alaska had more residents move away to other U.S. counties than move in during 2025. Dillingham Census Area had the largest net outflow for its size: 29.0 per 1,000 residents (−130 people). In people, Anchorage Municipality had the largest net outflow (−2,717).

Net out-migration does not always mean fewer residents: 4 of these 21 counties still had more residents in 2025 than in 2020.

Data as of 2025 · updated November 5, 2026

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All 21 Alaska counties with net out-migration

Counties with the most out-migration in Alaska
Rank	County	Per 1,000 residents, 2025	Net movers 2025	Residents	Population change 2020–25
1	Dillingham Census Area	−29.0	−130	4,483	−7.4%
2	Kusilvak Census Area	−21.3	−169	7,932	−5.2%
3	Northwest Arctic Borough	−16.5	−117	7,095	−9.0%
4	Aleutians East Borough	−16.4	−57	3,479	+1.6%
5	Fairbanks North Star Borough	−15.4	−1,447	93,972	−1.4%
6	Sitka City and Borough	−12.9	−107	8,319	−1.3%
7	Bethel Census Area	−12.5	−229	18,391	−1.5%
8	Yukon-Koyukuk Census Area	−11.7	−59	5,028	−5.1%
9	Kodiak Island Borough	−11.5	−143	12,387	−5.1%
10	Ketchikan Gateway Borough	−10.8	−146	13,549	−2.6%
11	North Slope Borough	−10.6	−112	10,582	−3.8%
12	Aleutians West Census Area	−9.9	−52	5,240	+1.2%
13	Petersburg Borough	−9.7	−33	3,394	−0.1%
14	Anchorage Municipality	−9.5	−2,717	287,155	−1.3%
15	Wrangell City and Borough	−8.5	−17	2,007	−5.6%
16	Hoonah-Angoon Census Area	−8.4	−19	2,271	−3.9%
17	Nome Census Area	−7.5	−74	9,830	−1.9%
18	Copper River Census Area	−6.4	−17	2,666	+1.9%
19	Chugach Census Area	−6.3	−41	6,553	−7.5%
20	Juneau City and Borough	−4.7	−149	31,609	−1.8%
21	Southeast Fairbanks Census Area	−3.3	−24	7,270	+6.5%

How this is ranked

Counties where more residents moved away to other U.S. counties than moved in (negative net domestic migration in the Census Bureau's population estimates for 2025), per 1,000 residents, largest net outflow first. Moves from and to other countries, births and deaths are not counted. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are left out, as on every ranking.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Alaska are the most people leaving?

For its size, Dillingham Census Area: net domestic migration of −29.0 per 1,000 residents in 2025 (−130 people; Census Bureau population estimates). Next: Kusilvak Census Area (−21.3) and Northwest Arctic Borough (−16.5).

How many counties in Alaska have more people moving out than in?

21 of the 28 ranked counties in Alaska had more residents move away to other U.S. counties than move in during 2025.

Does net out-migration mean a county is losing population?

Not always. Net domestic migration counts moves between U.S. counties only; births, deaths and international migration also change the total. 4 of these 21 counties still had more residents in 2025 than in 2020.

More county rankings for Alaska

Counties with the most out-migration in other states

Across the U.S.