Rawalpindi District (Punjabi and , Zilā' Rāvalpinḍī) is a district within the Rawalpindi Division Punjab, Pakistan. Located within the Pothohar Plateau in northwestern Punjab, it is the third most-populous district in the province. Rawalpindi serves as the headquarters of the district, with the northern part of the district forming part of the Islamabad-Rawalpindi metropolitan area.
The district has an area of . Originally, its area was until the 1960s when Islamabad Capital Territory was carved out of the district, giving away an area of . It is situated on the southern slopes of the north-western extremities of the Himalayas, including large mountain tracts with rich valleys traversed by mountain rivers. The chief rivers are the Indus and the Jhelum, and it is noted for its milder climate and abundant rainfall due to its proximity to the foothills.
History
Ancient history
thumb|[[Mankiala Stupa from Rawalpindi city|left]]
In ancient times the whole or the greater part of the area between the Indus and the Jhelum seems to have belonged to a Naga tribe called Takshakas, who gave their name to the city of Takshasila. Known as Taxila by the Greek historians, the location of the ancient city has been identified to be in the ruins of Shahdheri in the north-west corner of the District.
At the time of Alexander's invasion Taxila was described by Arrian as a flourishing city, known more for its tourism. Taxila having too weak army, locals of the city had immediately surrendered to Greek army without a battle; adds that the neighbouring country was crowded with inhabitants and was very fertile; and Pliny speaks of it as a famous city situated in a district called Amanda. The invasion of Demetrius in 195 B.C. brought the Punjab under the Graeco-Bactrian kings. Later they were superseded by the Sakas, who ruled at Taxila with the title of Satrap. At the time of Hiuen Tsiang (Chinese explorer), the city was a dependency of Kashmir.
Muslim era
Sultan Mahmud Ghaznavi passed through the District after his defeat of Anandpal and capture of Ohind. The first mention of the Gakhars occurs in the memoirs of Babar, who gives an interesting account of the capture of their capital, Paralah. It was strongly situated in the hills, and was defended with great bravery by its chief Hati Khan, who escaped from one gate as the Mughal army marched in at the other. Hati Khan died by poison in 1525 ; his cousin and murderer Sultan Sarang then submitted to Babar, who conferred on him the area of Potwar. From that time on the Gakhar chieftains remained firm allies of the Mughal dynasty, and provided significant aid to the Mughal in their struggle against the house of Sher Shah. Salim Shah attempted in vain to subdue their country.
In 1553 Adam Khan, Sarang's successor, surrendered the rebel prince Kamran to Humayun. Adam Khan was subsequently deposed by Akbar, and his principality given over to his nephew Kamal Khan. During the height of the Mughal empire, the family of Sarang retained its territorial possessions. Its last and Gakhars chief, Mukarrab Khan, ruled over a kingdom which extended from the Chenab to the Indus. and though tranquillity was disturbed by an insurrection four years later, led by a Gakhar chief with the object of placing a pretended son of Ranjit Singh on the throne, its administration was generally peaceful until the outbreak of the Mutiny in 1857. The Dhunds and other tribes of the Murree Hills, incited by Hindustani agents, rose in insurrection, and the authorities received information from a faithful native of a projected attack upon the station of Murree in time to organise measures for defence. The women near the station, who were present in large numbers, were placed in safety, while the Europeans and police were drawn up in a cordon round the station. The rebels arrived expecting no resistance, but were met with organised resistance and were repelled.||Population<br />(2023)
As of the 2023 census, Rawalpindi district had 931,813 households and a population of 5,745,964 which is roughly equal to the population of Cook County, Illinois, United States or Pudong New Area, Shanghai, China. The district had a sex ratio of 103.54 males to 100 females and a literacy rate of 83.05%: 87.63% for males and 78.28% for females. 1,279,536 (22.49% of the surveyed population) were under 10 years of age. 4,031,341 (70.15%) lived in urban areas. and is the second-most urbanised district in Punjab. The population was estimated to be 4.5 million in 2010.