Rank | City | Population | Definition | Area (km²)
1 | Shanghai | 13,831,900 | Core districts + inner suburbs | 1928
2 | Mumbai | 13,830,884 | Municipal Corporation | 603
3 | Karachi | 12,991,000 | City District | 3527
4 | Delhi | 12,565,901 | Municipal Corporation | 431,09
5 | Istanbul | 12,517,664 | Metropolitan Municipality | 1831
6 | São Paulo | 11,244,369 | Municipality | 1523
7 | Moscow | 10,563,038 | City proper (includes Zelenograd) | 1081
8 | Seoul | 10,464,051 | Special City | 605,25
9 | Beijing | 10,123,000 | Core districts + inner suburbs | 1368,32
10 | Jakarta | 9,588,198 | Special capital district | 662,33
11 | Tokyo | 8,887,608 | 23 Special Wards | 617,18
12 | Mexico City | 8,873,017 | Federal District | 1485,49
13 | Kinshasa | 8,754,000 | City-Province | 2,016
14 | New York City | 8,363,710 | City proper | 789,4
15 | Lagos | 7,937,932 | statistical area | 999,6
16 | London | 7,753,600 | Greater London | 1580
17 | Lima | 7,605,742 | Province | 2670,4
18 | Bogotá | 7,259,597 | Capital district | 1590
19 | Tehran | 7,241,000 | City proper | 760