This article is about the city of Islamabad. For other uses, see Islamabad (disambiguation). Islamabad اسلام آباد — Capital City — Clockwise from top: Faisal Mosque, Serena Hotel, Parliament House, Pakistan Monument, Night view of Islamabad, and Prime Minister’s Secretariat Nickname(s): Isloo The Green City Islamabad is located in Pakistan Islamabad Location within Pakistan Coordinates: 33°43′N 73°04′ECoordinates: 33°43′N 73°04′E Country Pakistan Territory Islamabad Capital Territory Constructed 1960s Government • Governing body Capital Development Authority (CDA) • Chief Commissioner Ahmed Owais Pirzada • Chairman CDA Syed Tahir Shahbaz • Deputy Commissioner Amir Ali Area • Capital City 906.00 km2 (349.81 sq mi) • Urban 906.00 km2 (349.81 sq mi) Highest elevation 1,604 m (5,263 ft) Lowest elevation 457 m (1,499 ft) Population (2011 census) • Capital City 1,151,868 • Density 1,271/km2 (3,290/sq mi) Time zone PST (UTC+5) Postcode 44000 Area code(s) 051 Website http://www.islamabad.gov.pk This article contains Urdu text, written from right to left with some letters joined. Without proper rendering support, you may see unjoined letters or other symbols instead of Urdu script. Islamabad (Urdu: اسلام آباد Islām ābād) is the capital of Pakistan and the ninth largest city in the country. Located within the Islamabad Capital Territory (ICT), the population of the city has grown from 100,000 in 1951 to 1.15 million as of 2011. The greater Islamabad-Rawalpindi Metropolitan Area is the third largest conurbation in Pakistan with a population of over 4.5 million inhabitants. Islamabad is located in the Pothohar Plateau in the northeastern part of the country, within the Islamabad Capital Territory. The region has historically been a part of the crossroads of Punjab and Khyber Pakhtunkhwa with Margalla pass acting as the gateway between the two regions. The city was built during the 1960s to replace Karachi as Pakistan’s capital. Islamabad is a well-organised international city divided into several different sectors and zones. It is regarded as the most developed city in Pakistan and is ranked as a Gamma- world city. The city is home to Faisal Mosque, the largest mosque in South Asia and the fourth largest mosque in the world. Islamabad has the highest literacy rate in Pakistan and is home to the some of the top-ranked universities in Pakistan, including Quaid-i-Azam University, Pakistan Institute of Engineering & Applied Sciences and National University of Sciences and Technology. Allama Iqbal Open University in Islamabad is one of the world’s largest universities by enrollment.