History: United States Of America, 1900-1930

Rank - Core city - Pop. - Metro rank - Metropolitan Statistical Area - Metro area pop. - Region
1 - New York City, New York - 8,363,710 - 1 - New York-Northern New Jersey-Long Island, NY-NJ-PA MSA - 19,006,798 - Northeast
2 - Los Angeles, California - 3,833,995 - 2 - Los Angeles-Long Beach-Santa Ana, CA MSA - 12,872,808 - West
3 - Chicago, Illinois - 2,853,114 - 3 - Chicago-Naperville-Joliet, IL-IN-WI MSA - 9,569,624 - Midwest