America's largest metro areas saw massive declines in population, new US Census Bureau data show.

Three of the top five metros that saw sharp declines between July 1, 2020, and July 1, 2021 were in California. Leading the way was the Los Angeles-Long Beach metropolitan area, which lost 176,000 residents, a 1.3 percent drop. Next was the San Francisco-Oakland-Berkeley metro, which saw a decline of 116,000 residents (2.5 percent decline), followed by San Jose-Sunnyvale-Santa Clara, which shed some 43,000 residents (2.2 percent drop).

"We are in this new demographic era for California of very slow or maybe even negative growth," Hans Johnson, a demographer with the Public Policy Institute of California, told the Los Angeles Times. "And it does have implications for everything in our state — from how we live our lives to which schools are getting closed down to how much capacity we might need for transportation networks, and eventually to housing."

California metros had company, however.