Population growth projections indicate a disparity across the U.S. in the 21st century. Aging populations, outbound migration, and housing constraints are expected to cause stagnation or decline in some metropolitan areas. Conversely, cities in the Sun Belt and Mountain West are predicted to experience substantial growth, with eight cities in Texas and six in California among the fastest expanding. Projections are based on the Global 1-km Downscaled Population Base Year and forecast scenarios from the University of Illinois Chicago, focusing on the period from 2020 to 2100.
Population growth in the 21st century will be uneven in the U.S., with some metropolitan areas facing stagnation while others, particularly in the Sun Belt and Mountain West, will expand significantly.
Projected population growth will be concentrated in the Sun Belt, with Texas and California having the majority of cities expected to see the largest increases through 2100.
24/7 Wall St. evaluated long-term demographic projections from the University of Illinois Chicago, ranking cities based on expected raw population growth from 2020 to 2100.
Population forecasts utilized SSP2 from the Shared Socioeconomic Pathways, reflecting a scenario where historical demographic trends continue largely uninterrupted.
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