List of United States cities by population Cities formerly over 100,000 people Cities formerly over 100,000 people

| City | State_ | _2010_population | Peak_population_year | Numeric_decline_from_peak_population | Percent_decline_from_peak_population |
|---|---|---|---|---|---|
| Albany | New York | 97856 | 134995 (1950) | -37139 | -27.51% |
| Allegheny | Pennsylvania | N/A | 129896 (1900) | – | – |
| Brooklyn | New York | N/A | 806,343 (1890) | – | – |
| Camden | New Jersey | 77344 | 124555 (1950) | -47211 | -37.90% |
| Canton | Ohio | 73007 | 116912 (1950) | -43905 | -37.55% |
| Dearborn | Michigan | 98153 | 112007 (1960) | -13854 | -12.37% |
| Duluth | Minnesota | 86265 | 107312 (1960) | -21047 | -19.61% |
| Fall River | Massachusetts | 88857 | 120485 (1920) | -31628 | -26.25% |
| Gary | Indiana | 80294 | 178320 (1960) | -98026 | -54.97% |
| Hammond | Indiana | 80830 | 111698 (1960) | -30868 | -27.64% |
| Livonia | Michigan | 96942 | 110109 (1970) | -13167 | -11.96% |
| Lynn | Massachusetts | 90329 | 102320 (1930) | -11991 | -11.72% |
| Macon | Georgia | 91351 | 122423 (1970) | -31072 | -25.38% |