伦敦6个区的邮编如下：

　　1. 伦敦市（City of London）：EC1, EC2, EC3, EC4

　　2. 西伦敦（West London）：W1, W2, W8, W9, W10, W11, W12, W13, W14, W15, W16, W17, W18, W19

　　3. 东伦敦（East London）：E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, E20

　　4. 南伦敦（South London）：SE1, SE2, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28

　　5. 北伦敦（North London）：N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19, N20, N21, N22, N23, N24, N25, N26, N27, N28, N29, N30

　　6. 东南伦敦（South East London）：BR1, BR2, BR3, BR4, BR5, BR6, BR7, BR8, BR9, BR10, BR11, BR12, BR13, BR14, BR15, BR16, BR17, BR18, BR19, BR20, BR21, BR22, BR23, BR24, BR25, BR26, BR27, BR28, BR29, BR30, BR31