| Years as World's Largest City | City | Population (Modern Location) |
| 3100 BC - 2240 BC, 1557 - 1400 | |
| 2240 - 2075 | |
| 2075 - 2030 | |
| 2030 - 1980 | |
| 1980 - 1770, 1400 - 668 | |
| 1770 - 1670, 612 - 320 | |
| 1670 - 1557 | |
| 668 - 612 | |
| 320 - 300 | |
| 300 - 195 | |
| 195 BC - 25 BC, 637 AD - 775 AD | |
| 25 BC - 340 AD | |
| 340 AD - 570, 1127- 1145, 1153 - 1170, 1650 - 1710 | |
| | Years as World's Largest City | City | Population (Modern Location) |
| 570 - 637 | |
| 775 - 935 | |
| 935 - 1013 | |
| 1013 - 1127 | |
| 1145 - 1153 | |
| 1170 - 1180 | |
| 1180 - 1315, 1348 -1358 | |
| 1315 - 1348 | |
| 1358 - 1425 | |
| 1425 - 1650, 1710 - 1825 | |
| 1825 - 1925 | |
| 1925 - 1965 | |
| 1965 - Present | |
| Planned | |
|