List of postal codes in Karachi

Postal Codes were introduced in Pakistan on January 1, 1988 to speed sortation and delivery. These codes are for the delivery post office in whose jurisdiction the address falls. 
Pakistan Post office is one of the oldest government departments in the South Asia. In 1947, it began functioning as the Department of Post and Telegraph. In 1962 it was separated from the Telegraph & Telephone and started working as an independent post office.
The following is the list of some of the post codes within the Karachi. GPO stands for General Post Office, the main post office in the city. For larger cities (Karachi and Lahore), there are a number of GPOs; however the main one is the only one which has just the city's name attached to it (Karachi GPO and Lahore GPO).