Alaska's counties show varied growth patterns from 2020 to 2026. Matanuska-Susitna Borough leads with 1.86% annualized growth, followed by Southeast Fairbanks Census Area (1.13%) and Kenai Peninsula Borough (0.97%). The largest counties are Anchorage Municipality (286,941), Matanuska-Susitna Borough (120,078), and Fairbanks North Star Borough (93,320). Of the 30 counties in Alaska, 9 are growing while 21 have experienced population decline. Overall, counties averaged -0.34% annualized growth, with total population growing by 0.12% annually.
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