US Population Density Trends Excluding Alaska: Key Insights and Future Outlook

Across the United States, excluding the sparsely populated state of Alaska, the average population density has risen to roughly 35 people per square mile, a noticeable uptick from the national average of 33 when all 50 states are considered. This shift highlights how Alaska’s exceptionally low density—averaging less than one person per square kilometer—dilutes national figures and masks regional variations in settlement patterns.

Context: Alaska’s Declining Population and Its Impact

Alaska’s population is projected to decline by 17% over the next decade, a trend that further lowers its already minimal density. This projected drop, combined with the state’s expansive land area, reinforces its status as a statistical outlier in national density calculations.

Population drop in Southeast Alaska forecast

Details: Current Density Distribution Across the Contiguous United States

When Alaska is removed from the equation, the contiguous 48 states exhibit a density distribution that is markedly uneven. Urban corridors along the East and West coasts, the Midwest’s Great Plains, and the sprawling interior of Texas dominate the higher-density clusters, while large swaths of the Southwest and northern plains remain comparatively sparse.

US population density map

Implications: Planning, Infrastructure, and Resource Allocation

The higher average density outside Alaska carries significant implications for transportation planning, broadband deployment, and public service distribution. State and federal agencies are increasingly focused on expanding high-capacity infrastructure in high-density urban centers while addressing the unique needs of rural communities that, although less dense, still require reliable connectivity and services.

US population density map

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