Lhasa, officially the Chengguan District of Lhasa City, is the inner urban district of Lhasa City, Tibet Autonomous Region, Southwestern China.

Lhasa is the second most populous urban area on the Tibetan Plateau after Xining and, at an altitude of 3,656 metres (11,990 ft), Lhasa is one of the highest cities in the world. The city has been the religious and administrative capital of Tibet since the mid-17th century. It contains many culturally significant Tibetan Buddhist sites such as the Potala Palace, Jokhang Temple and Norbulingka Palaces.

Lhasa literally translates to "place of gods" (ལྷ lha, god; ས sa, place) in the Tibetan language. Chengguan literally translates to "urban gateway" (Chinese: 城关; pinyin: Chéngguān) in the Chinese language. Ancient Tibetan documents and inscriptions demonstrate that the place was called Rasa (ར་ས), which meant "goat's place", as it was a herding site. The name was changed to Lhasa, which means "place of gods", upon its establishment as the capital of Tibet, and construction of the Jokhang temple was completed, which housed a holy statue of the Buddha. Lhasa is first recorded as the name, referring to the area's temple of Jowo, in a treaty drawn up between China and Tibet in 822 C.E. In some old European maps, where Tibet is depicted, a town under the name Barantola can be come up with; this town has mostly been suggested to be Lhasa, at other times to refer to modern Bulantai/Boluntay in the western part of the Qinghai province.

By the mid 7th century, Songtsen Gampo became the leader of the Tibetan Empire that had risen to power in the Yarlung Tsangpo River (whose lower reaches in India is known as the Brahmaputra River) Valley. After conquering the kingdom of Zhangzhung in the west, he moved the capital from the Chingwa Taktsé Castle in Chongye County (pinyin: Qióngjié Xiàn), southwest of Yarlung, to Rasa (Lhasa) where in 637 he raised the first structures on the site of what is now the Potala Palace on Mount Marpori. In CE 639 and 641, Songtsen Gampo, who by this time had conquered the whole Tibetan region, is said to have contracted two alliance marriages, firstly to a Princess Bhrikuti of Nepal, and then, two years later, to Princess Wencheng of the Imperial Tang court. Bhrikuti is said to have converted him to Buddhism, which was also the faith attributed to his second wife Wencheng. In 641 he constructed the Jokhang (or Rasa Trülnang Tsulagkhang) and Ramoche Temples in Lhasa in order to house two Buddha statues, the Akshobhya Vajra (depicting the Buddha at the age of eight) and the Jowo Sakyamuni (depicting Buddha at the age of twelve), respectively brought to his court by the princesses. Lhasa suffered extensive damage under the reign of Langdarma in the 9th century, when the sacred sites were destroyed and desecrated and the empire fragmented.

A Tibetan tradition mentions that after Songtsen Gampo's death in 649 C.E., Chinese troops captured Lhasa and burnt the Red Palace. Chinese and Tibetan scholars have noted that the event is mentioned neither in the Chinese annals nor in the Tibetan manuscripts of Dunhuang. Lǐ suggested that this tradition may derive from an interpolation. Tsepon W. D. Shakabpa believes that "those histories reporting the arrival of Chinese troops are not correct."

From the fall of the monarchy in the 9th century to the accession of the 5th Dalai Lama, the centre of political power in the Tibetan region was not situated in Lhasa. However, the importance of Lhasa as a religious site became increasingly significant as the centuries progressed. It was known as the centre of Tibet where Padmasambhava magically pinned down the earth demoness and built the foundation of the Jokhang Temple over her heart. Islam has been present since the 11th century in what is considered to have always been a monolithically Buddhist culture. Two Tibetan Muslim communities have lived in Lhasa with distinct homes, food and clothing, language, education, trade and traditional herbal medicine.

By the 15th century, the city of Lhasa had risen to prominence following the founding of three large Gelugpa monasteries by Je Tsongkhapa and his disciples. The three monasteries are Ganden, Sera and Drepung which were built as part of the puritanical Buddhist revival in Tibet. The scholarly achievements and political know-how of this Gelugpa Lineage eventually pushed Lhasa once more to centre stage.

The 5th Dalai Lama, Lobsang Gyatso (1617–1682), unified Tibet and moved the centre of his administration to Lhasa in 1642 with the help of Güshi Khan of the Khoshut. With Güshi Khan as a largely uninvolved overlord, the 5th Dalai Lama and his intimates established a civil administration which is referred to by historians as the Lhasa state. The core leadership of this government is also referred to as the Ganden Phodrang, and Lhasa thereafter became both the religious and political capital. In 1645, the reconstruction of the Potala Palace began on Red Hill. In 1648, the Potrang Karpo (White Palace) of the Potala was completed, and the Potala was used as a winter palace by the Dalai Lama from that time onwards. The Potrang Marpo (Red Palace) was added between 1690 and 1694. The name Potala is derived from Mount Potalaka, the mythical abode of the Dalai Lama's divine prototype, the Bodhisattva Avalokiteśvara. The Jokhang Temple was also greatly expanded around this time. Although some wooden carvings and lintels of the Jokhang Temple date to the 7th century, the oldest of Lhasa's extant buildings, such as within the Potala Palace, the Jokhang and some of the monasteries and properties in the Old Quarter date to this second flowering in Lhasa's history.

By the end of the 17th century, Lhasa's Barkhor area formed a bustling market for foreign goods. The Jesuit missionary, Ippolito Desideri reported in 1716 that the city had a cosmopolitan community of Mongol, Chinese, Muscovite, Armenian, Kashmiri, Nepalese and Northern Indian traders. Tibet was exporting musk, gold, medicinal plants, furs and yak tails to far-flung markets, in exchange for sugar, tea, saffron, Persian turquoise, European amber and Mediterranean coral. The Qing dynasty army entered Lhasa in 1720, and the Qing government sent resident commissioners, called the Ambans, to Lhasa. On 11 November 1750, the murder of the regent by the Ambans triggered a riot in the city that left more than a hundred people killed, including the Ambans. After suppressing the rebels, Qing Qianlong Emperor reorganized the Tibetan government and set up the governing council called Kashag in Lhasa in 1751.

In January 1904, a British expeditionary force invaded and captured Lhasa during the British expedition to Tibet. The expedition's leader, Sir Francis Younghusband negotiated the Convention Between Great Britain and Tibet with the remaining Tibetan officials after the Dalai Lama had fled to the countryside. The treaty was subsequently repudiated and was succeeded by a 1906 Anglo-Chinese treaty. All Qing troops left Lhasa after the Xinhai Lhasa turmoil in 1912.

On November 2, 1949, the local Tibetan government sent a letter to Mao Zedong (then Chairman of the Chinese Communist Party) expressing its desire for talks. Tsepon Shargyalpa and Tsejang Khenpo Tubten Gyalpo were sent as representatives, but no consensus was reached. On October 7, 1950, the Chinese People's Liberation Army launched the Battle of Chamdo. After the battle, the PLA ceased military operations, released all Tibetan prisoners, and expressed its hope for a settlement through peace talks. At the invitation of the Central Government, the Dalai Lama and a Tibetan government delegation traveled to Beijing for peace talks, and in April 1951, a five-member delegation headed by Ngapo-Ngawang Jigme traveled to Beijing and reached a consensus on peace talks.

In 1959, following a failed uprising, the 14th Dalai Lama and his associates fled Tibet. Lhasa remained the political, economic, cultural and religious center of Tibet. In January 1960, Lhasa City was established. In 1964, the autonomous region and Lhasa city leaders jointly formed the Lhasa City Municipal Construction Command, led from the country's brother provinces and cities to mobilize the construction team, has built the Lhasa City YuTuo Road, KangAng East Road, NiangJe South Road, JinZhu East Road, DuoSen South Road and Beijing West Road. Lhasa local officials paved more than 100,000 square meters of asphalt. The new city center of Lhasa is three times larger than the old city center, and the population of the city has increased by more than 20,000 people. In September 1965, the Tibet Autonomous Region was established, and Lhasa became the capital of the region.

Of the 22 parks (lingkas) which surrounded the city of Lhasa, most of them over half a mile in length, where the people of Lhasa were accustomed to picnic, only three survive today: the Norbulingka, Dalai Lama's Summer Palace, constructed by the 7th Dalai Lama; a small part of the Shugtri Lingka, and the Lukhang. Dormitory blocks, offices and army barracks are built over the rest.

The Guāndì miào (關帝廟) or Gesar Lhakhang temple was erected by the Amban in 1792 atop Mount Bamare 3 kilometres (2 miles) south of the Potala to celebrate the defeat of an invading Gurkha army. The main gate to the city of Lhasa used to run through the large Pargo Kaling chorten and contained holy relics of the Buddha Mindukpa.

In 2000 the urbanised area covered 53 square kilometres (20 sq mi), with a population of around 170,000. Official statistics of the metropolitan area report that 70 percent are Tibetan, 24.3 are Han, and the remaining 2.7 Hui, though outside observers suspect that non-Tibetans account for some 50–70 percent. According to the Sixth Population Census in 2010, the population of Tibetans is 429,104, accounting for 76.70% of the total population of Lhasa. The second most populous ethnic group is the Han Chinese, with a population of 121,065, accounting for 21.64% of Lhasa's total population. These two ethnic groups account for the vast majority of Lhasa's total population, while other ethnic minorities account for only about 1.66% of Lhasa's total population.

Lhasa has an elevation of about 3,600 m (11,800 ft) and lies in the centre of the Tibetan Plateau with the surrounding mountains rising to 5,500 m (18,000 ft). The air only contains 68 percent of the oxygen compared to sea level. The Lhasa River, also Kyi River or Kyi Chu, a tributary of the Yarlung Zangbo River (Brahmaputra River), runs through the southern part of the city. This river, known to local Tibetans as the "merry blue waves", flows through the snow-covered peaks and gullies of the Nyainqêntanglha mountains, extending 315 km (196 mi), and emptying into the Yarlung Zangbo River at Qüxü, forms an area of great scenic beauty. The marshlands, mostly uninhabited, are to the north. Ingress and egress roads run east and west, while to the north, the road infrastructure is less developed.

Chengguan District is located on the middle reaches of the Lhasa River, a tributary of the Brahmaputra River, with land that rises to the north and south of the river. It is 28 kilometres (17 mi) from east to west and 31 kilometres (19 mi) from north to south. Chengguan District is bordered by Doilungdêqên District to the west, Dagzê County to the east and Lhünzhub County to the north. Gonggar County of Lhoka (Shannan) Prefecture lies to the south.

Chengguan District has an elevation of 3,650 metres (11,980 ft) and covers 525 square kilometres (203 sq mi). The urban built-up area covers 60 square kilometres (23 sq mi).The average annual temperature of 8 °C (46 °F). Annual precipitation is about 300 millimetres (12 in) to 500 millimetres (20 in), mostly falling between July and September.

The term "Chengguan District" is the administrative term for the inner urban area or the urban centre within a prefecture, in this case the Prefectural-city of Lhasa. Outside of the urban area much of Chengguan District is mainly mountainous with a near nonexistent rural population. Chengguan District is at the same administrative level as a county. Chengguan District of Lhasa was established on 23 April 1961. It currently has 12 fully urban subdistricts.

Name	Tibetan	Tibetan Pinyin	Chinese	Pinyin	Population (2010)
Pargor Subdistrict	བར་སྒོར་ཁྲོམ་གཞུང་།	Pargor Tromzhung	八廓街道	Bākuò Jiēdào	92,107
Gyirai Subdistrict	སྐྱིད་རས་ཁྲོམ་གཞུང་།	Gyirai Tromzhung	吉日街道	Jírì Jiēdào	21,022
Jêbumgang Subdistrict	རྗེ་འབུམ་སྒང་ཁྲོམ་གཞུང་།	Jêbumgang Tromzhung	吉崩岗街道	Jíbēnggǎng Jiēdào	29,984
Chabxi Subdistrict	གྲ་བཞི་ཁྲོམ་གཞུང་།	Chabxi Tromzhung	扎细街道	Zāxì Jiēdào	30,820
Gündêling Subdistrict	ཀུན་བདེ་གླིང་ཁྲོམ་གཞུང་།	Gündêling Tromzhung	公德林街道	Gōngdélín Jiēdào	55,404
Garmagoinsar Subdistrict	ཀརྨ་མ་ཀུན་བཟང་ཁྲོམ་གཞུང་།	Garmagoinsar Tromzhung	嘎玛贡桑街道	Gámǎgòngsāng Jiēdào	19,472
Liangdao Subdistrict	གླིང་ཕྲན་གཉིས་ཀྱི་ཁྲོམ་གཞུང་།	Lingchain Nyi'gyi Tromzhung	两岛街道	Liǎngdǎo Jiēdào	14,055
Jinzhu West Road Subdistrict	བཅིངས་འགྲོལ་ནུབ་ལམ་ཁྲོམ་གཞུང་།	Jingzhoi Nublam Tromzhung	金珠西路街道	Jīnzhū Xīlù Jiēdào	established in 2013
Ngaqên Subdistrict	སྣ་ཆེན་ཁྲོམ་གཞུང་།	Ngaqên Tromzhung	纳金街道	Nàjīn Jiēdào	29,575
Togdê Subdistrict	དོག་སྡེ་ཁྲོམ་གཞུང་།	Togdê Tromzhung	夺底街道	Duóde Jiēdào	15,186
Caigungtang Subdistrict	ཚལ་གུང་ཐང་ཁྲོམ་གཞུང་།	Caigungtang Tromzhung	蔡公堂街道	Càigōngtáng Jiēdào	8,800
Nyangrain Subdistrict	ཉང་བྲན་ཁྲོམ་གཞུང་།	Nyangrain Tromzhung	娘热街道	Niángrè Jiēdào	26,354

Owing to its very high elevation, Lhasa has a cool semi-arid climate (Köppen: BSk), bordering on both a monsoon-influenced subtropical highland climate (Köppen: Cwb) and a humid continental climate (Köppen: Dwb), with frosty winters and mild summers, yet the valley location protects the city from intense cold or heat and strong winds. Monthly possible sunshine ranges from 53 percent in July to 84 percent in November, and the city receives nearly 3,000 hours of sunlight annually. It is thus sometimes called the "sunlit city" by Tibetans. The coldest month is January with an average temperature of 0.6 °C (33.1 °F) and the warmest month is June and July with a daily average of 17.5 °C (63.5 °F), though nights have generally been warmer in July. The annual mean temperature is 8.8 °C (47.8 °F), with extreme temperatures ranging from −16.5 to 30.8 °C (2 to 87 °F) on 17 January 1968 and 24 June 2019 respectively. Lhasa has an annual precipitation of 458 millimetres (18.0 in) with rain falling mainly in July, August and September. The driest month is December at 0.3 millimetres (0.01 in) and the wettest month is August, at 133.5 millimetres (5.26 in). Summer is widely regarded the "best" of the year as rains come mostly at night and Lhasa is still sunny during the daytime.

The 11th edition of Encyclopædia Britannica published between 1910 and 1911 noted the total population of Lhasa, including the lamas in the city and vicinity was about 30,000, A census in 1854 made the figure 42,000, but it is known to have greatly decreased afterwards. Britannica noted that within Lhasa, there were about a total of 1,500 resident Tibetan laymen and about 5,500 Tibetan women. The permanent population also included Chinese families (about 2,000). The city's residents included traders from Nepal and Ladakh (about 800), and a few from Bhutan, Mongolia and other places. The Britannica noted with interest that the Chinese had a crowded burial-ground at Lhasa, tended carefully after their manner and that the Nepalese supplied mechanics and metal-workers at that time.

In the first half of the 20th century, several Western explorers made celebrated journeys to the city, including William Montgomery McGovern, Francis Younghusband, Alexandra David-Néel, and Heinrich Harrer. Lhasa was the centre of Tibetan Buddhism as nearly half of its population were monks, Though this figure may include monks from surrounding monasteries who travelled to Lhasa for various celebrations and were not ordinarily resident there.

The majority of the pre-1950 Chinese population of Lhasa were merchants and officials. In the Lubu section of Lhasa, the inhabitants were descendants of Chinese vegetable farmers, some of whom married Tibetan wives. They came to Lhasa in the 1840s–1860s after a Chinese official was appointed to the position of Amban.

According to one writer, the population of the city was about 10,000, with some 10,000 monks at Drepung and Sera monasteries in 1959. Hugh Richardson, on the other hand, puts the population of Lhasa in 1952, at "some 25,000–30,000—about 45,000–50,000 if the population of the great monasteries on its outskirts be included."

The total population of Lhasa Prefecture-level City is 521,500 (including known migrant population but excluding military garrisons). Of this, 257,400 are in the urban area (including a migrant population of 100,700), while 264,100 are outside. Nearly half of Lhasa Prefecture-level City's population lives in Chengguan District, which is the administrative division that contains the urban area of Lhasa (i.e. the actual city).

The urban area is populated by ethnic Tibetans, Han, Hui and other ethnic groups. The 2000 official census gave a total population of 223,001, of which 171,719 lived in the areas administered by city street offices and city neighborhood committees. 133,603 had urban registrations and 86,395 had rural registrations, based on their place of origin. The census was taken in November, when many of the ethnic Han workers in seasonal industries such as construction would have been away from Tibet, and did not count the military. A 2011 book estimated that up to two-thirds of the city's residents are non-Tibetan, although the government states that Chengguan District as a whole is still 63% ethnic Tibetan. As of 2014, half of Tibet's Han population resided in the district, where bilingual or wholly Chinese teaching was common in the schools.

Competitive industry together with feature economy play key roles in the development of Lhasa. With the view to maintaining a balance between population growth and the environment, tourism and service industries are emphasised as growth engines for the future. Many of Lhasa's rural residents practice traditional agriculture and animal husbandry. Lhasa is also the traditional hub of the Tibetan trading network. For many years, chemical and car making plants operated in the area and this resulted in significant pollution, a factor which has changed in recent years. Copper, lead and zinc are mined nearby and there is ongoing experimentation regarding new methods of mineral mining and geothermal heat extraction.

Agriculture and animal husbandry in Lhasa are considered to be of a high standard. People mainly plant highland barley and winter wheat. The resources of water conservancy, geothermal heating, solar energy and various mines are abundant. There is widespread electricity together with the use of both machinery and traditional methods in the production of such things as textiles, leathers, plastics, matches and embroidery. The production of national handicrafts has made great progress.