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Durham Region
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Oshawa postal codes
5 postal code areas · 175,452 people (2021)
L1C
L1E
L1G
L1H
L1J
L1K
L1L
L1M
L1N
L1P
L1R
L1S
L1T
L1Z
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Oshawa is in Durham Region. Oshawa is L1G–L1L.
All 5 codes
L1G
Oshawa Central
· 43,497 people
L1H
Oshawa Southeast
· 32,298 people
L1J
Oshawa Southwest
· 43,107 people
L1K
Oshawa East
· 43,574 people
L1L
Oshawa North
· 12,976 people