Big cities across the U.S. are seeing their postrecession population surge slow as Americans uproot for new jobs and suburbs regain some of their appeal.

Census Bureau figures to be released Thursday show the top 50 cities accounted for 20% of the nation’s population growth for the 12 months ended July 1, 2015. That figure is down from 21% the prior fiscal year, and has slid each of the years since 2011, when cities accounted for 26.7% of U.S. population growth.

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