10 Largest US Cities by Decade

1920

1. New York (NY) – population: 5,620,048
2. Chicago (IL) – population: 2,701,705
3. Philadelphia (PA) – population: 1,823,779
4. Detroit (MI) – population: 993,078
5. Cleveland (OH) – population: 796,841
6. St. Louis (MO) – population: 772,897
7. Boston (MA) – population: 748,060
8. Baltimore (MD) – population: 733,826
9. Pittsburgh (PA) – population: 588,343
10. Los Angeles (CA) – population: 576,673

Detroit has managed almost to double its population thanks to the growth of automobile industry that has chosen this city for its host. At the same time, this decade marks LA’s first appearance in the list of 10 largest US cities by decade, and City of Angels will only see a prominent rise from now on.