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What are the fastest-growing counties in Alaska?

Matanuska-Susitna Borough (+10.4%), Southeast Fairbanks Census Area (+6.5%) and Kenai Peninsula Borough (+5.1%) grew fastest in Alaska between 2020 and 2025.

Alaska as a whole grew 0.6% between 2020 and 2025, to 737,270 residents.

Data as of 2025 · updated

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All 30 Alaska counties ranked

Alaska counties by population growth
RankCountyResidents 2025Change 2020–25Net migration per 1,000, 2025New homes per 1,000, 2025
1Matanuska-Susitna Borough118,666+10.4%7.40.7
2Southeast Fairbanks Census Area7,270+6.5%−3.3–
3Kenai Peninsula Borough61,951+5.1%6.03.6
4Copper River Census Area2,666+1.9%−6.4–
5Aleutians East Borough3,479+1.6%−16.40.0
6Aleutians West Census Area5,240+1.2%−9.90.8
7Prince of Wales-Hyder Census Area5,777+0.6%8.30.0
8Denali Borough1,616+0.2%12.4–
9Petersburg Borough3,394−0.1%−9.71.8
10Haines Borough2,068−1.0%1.53.9
11Anchorage Municipality287,155−1.3%−9.50.8
12Sitka City and Borough8,319−1.3%−12.91.2
13Fairbanks North Star Borough93,972−1.4%−15.40.3
14Bethel Census Area18,391−1.5%−12.50.4
15Juneau City and Borough31,609−1.8%−4.73.7
16Nome Census Area9,830−1.9%−7.50.3
17Ketchikan Gateway Borough13,549−2.6%−10.84.6
18North Slope Borough10,582−3.8%−10.60.5
19Hoonah-Angoon Census Area2,271−3.9%−8.48.8
20Kodiak Island Borough12,387−5.1%−11.50.7
21Yukon-Koyukuk Census Area5,028−5.1%−11.70.0
22Kusilvak Census Area7,932−5.2%−21.3–
23Wrangell City and Borough2,007−5.6%−8.50.5
24Lake and Peninsula Borough1,357−6.2%24.3–
25Dillingham Census Area4,483−7.4%−29.00.0
26Chugach Census Area6,553−7.5%−6.33.5
27Northwest Arctic Borough7,095−9.0%−16.50.3
28Skagway Municipality1,104−10.8%8.29.1
–Bristol Bay Borough847–––
–Yakutat City and Borough672–––

Ranked by the change in Census Bureau population estimates, 2020–2025. 2 counties are listed last and not ranked: fewer than 1,000 residents, or no estimate for the same years.

Statewide totals

More county rankings for Alaska

Metro areas

Fastest-growing metro areas in the U.S.

Every U.S. metro and micro area

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Questions

Is Alaska growing?

Alaska as a whole grew 0.6% between 2020 and 2025, to 737,270 residents. Statewide figures add up its counties.

What is the fastest-growing county in Alaska?

Matanuska-Susitna Borough, which grew 10.4% between 2020 and 2025 to 118,666 residents (Census Bureau population estimates). Southeast Fairbanks Census Area (+6.5%) and Kenai Peninsula Borough (+5.1%) came next.

Which Alaska counties are losing population?

20 of the 28 ranked counties had fewer residents in 2025 than in 2020. The steepest declines: Skagway Municipality (−10.8%), Northwest Arctic Borough (−9.0%), Chugach Census Area (−7.5%).

Where are people moving in Alaska?

For their size, Lake and Peninsula Borough (24.3 per 1,000 residents), Denali Borough (12.4 per 1,000 residents) and Prince of Wales-Hyder Census Area (8.3 per 1,000 residents) drew the most net domestic migration (people moving in from other U.S. counties minus people moving out) in 2025.

Fastest-growing counties in other states

Across the U.S.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.