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