Islamabad Postal Code - Post Code Islamabad Pakistan

Postal Code of Islamabad is: 44000

(Islamabad GPO Federal Capital - Pakistan)

About Islamabad:

Islamabad (help·info) (Urdu: اسلام آباد) Islāmabād (Meaning "Abode of Islam") is the capital of Pakistan, and is the tenth largest city in Pakistan. ^[1] The Rawalpindi/Islamabad metropolitan area is the third largest in Pakistan with a population of over 4.5 million inhabitants, 1.5 million in Islamabad and three million in Rawalpindi. ^[2]

Islamabad is located in the Potohar Plateau in the north of the country, within the Islamabad Capital Territory. The region has historically been a part of the crossroads of Punjab and the North-West Frontier Province, Margalla pass being a gateway to the North-West Frontier Province.

Sources:
http://en.wikipedia.org/wiki/Islamabad
http://www.pakpost.gov.pk/postcode/postcode.html