Major Northern cities like New York City (66 percent), Chicago (148 percent), Philadelphia (500 percent), and Detroit saw significant increases in their Black populations during the decade between 1910 and 1920.
More people moved north and farther west during this time to major Californian cities like Oakland, Los Angeles, and San Francisco as well as Portland, Oregon, and Seattle, Washington.
Large cities were where most southerners traveled during the two waves of the Great Migration. The eight major cities of New York, Chicago, Philadelphia, Pittsburgh, Detroit, Kansas City, Denver, Louis, and Indianapolis attracted two-thirds of the migrants during the first phase.
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