More than one-half of China’s population is urban, up from less than one-fourth in 1975. While the urban-rural proportion is relatively low compared with more highly industrialized countries, it represents an enormous number of people—comparable to the total population of North America. Some four dozen cities have populations of more than 1,000,000, and the populations of several other dozen are between 500,000 and 1,000,000. The distribution of China’s large cities mirrors the national population distribution, with heavy concentrations in the eastern coastal provinces, lesser but still significant numbers in the central provinces, and considerably fewer in western regions.
China: Urban-ruralEncyclopædia Britannica, Inc.
Demographic trends
Population growth
Historical records show that as long ago as 800 bce, in the early part of the Zhou dynasty, China was already inhabited by about 13.7 million people. Until the last years of the Xi (Western) Han dynasty, about 2 ce, comparatively accurate and complete registers of population were kept, and the total population in that year was given as 59.6 million. This first Chinese census was intended mainly as a preparatory step toward the levy of a poll tax. Many people, aware that a census might work to their disadvantage, managed to avoid reporting, which explains why for centuries all subsequent population figures were unreliable. In 1712 the Qing emperor Kangxi declared that an increased population would not be subject to tax; population figures thereafter gradually became more accurate.
During the later years of the Bei (Northern) Song dynasty, in the early 12th century, when China was already in the heyday of its economic and cultural development, the total population began to exceed 100 million. Later, uninterrupted and large-scale invasions from the north reduced the country’s population. When national unification returned with the advent of the Ming dynasty, the census was at first strictly conducted. The population of China, according to a registration compiled in 1381, was quite close to the one registered in 2 ce.
From the 15th century onward the population increased steadily, growth being interrupted by wars and natural disasters in the mid-17th century and slowed by the internal strife and foreign invasions in the century that preceded the communist takeover in 1949. During the 18th century China enjoyed a lengthy period of peace and prosperity, characterized by continual territorial expansion and an accelerating population increase. In 1762 China had a population of more than 200 million, and by 1834 that population had doubled. It should be noted that during that period the amount of cultivable land did not increase concomitantly, and land hunger became a growing problem from that time on.
After 1949, sanitation and medical care greatly improved, epidemics were brought under control, and subsequent generations enjoyed progressively better health. Public hygiene also improved, and, as a result, the death rate declined faster than the birth rate, and the population growth rate increased. China’s population reached 1 billion in the early 1980s and had surpassed 1.3 billion early in the 21st century.
The continually growing population has been a major problem for the government. In 1955–58, with the country struggling to obtain an adequate food supply and saddled with a generally low standard of living, the authorities sponsored a major birth-control drive. A second attempt at population control began in 1962, when the main initiatives were programs promoting late marriages and the use of contraceptives. The outbreak of the Cultural Revolution in 1966 interrupted this second family-planning drive, but in 1970 a third and much stricter program was initiated. The attempt this time was to make late marriage and family limitation obligatory, and it culminated in 1979 in efforts to implement a policy of one child per family.
Other developments affected the rate of population growth more than the first two official family-planning campaigns, notably the disastrous effects of Chinese leader Mao Zedong’s Great Leap Forward economic program of 1958–60. The policies of the Great Leap caused a massive famine in China, the death rate surpassed the birth rate, and by 1960 the overall population was declining. By 1963 the country was recovering from the famine, and, even though the second birth-control campaign had already begun, a soaring birth rate produced an annual population growth rate of more than 3 percent, the highest since 1949.
Since 1970, however, when the third family-planning program was launched, state efforts have been much more effective. China’s population growth rate is now among the lowest for a developing country, although, because its population is so huge, annual net population growth is still considerable. About one-sixth of the population is younger than 15 years of age.
China: Age breakdownEncyclopædia Britannica, Inc.
Population distribution
China’s complex natural conditions have produced an unevenly distributed population. Population density varies strikingly, with the greatest contrast occurring between the eastern half of China and the lands of the west and the northwest. Exceptionally high population densities occur in the Yangtze delta, the Pearl River Delta, and on the Chengdu Plain of the western Sichuan Basin. Most of the high-density areas are coterminous with the alluvial plains on which intensive agriculture is centred.
In contrast, the isolated, extensive western and frontier regions, which are much larger than any European country, are sparsely populated. Extensive uninhabited areas include the extremely high northern part of Tibet, the sandy wastes of the central Tarim and eastern Junggar basins in Xinjiang, and the barren desert and mountains east of Lop Nur.
In the 1950s the government became increasingly aware of the importance of the frontier regions and initiated a drive for former members of the military and young intellectuals to settle there. New railways and highways were constructed to traverse the wasteland, and this has spurred population growth and the development of a number of small mining and industrial towns.
Internal migration
Great population movements have been a recurring theme throughout Chinese history. Typically, some disastrous event such as famine or political upheaval would depopulate an area already intensively cultivated, after which people in adjacent crowded regions would move in to occupy the deserted land. A peasant rebellion in Sichuan in the 1640s caused great loss of life there, and people from neighbouring Hubei and Shaanxi then entered Sichuan to fill the vacuum; this migration pattern continued until the 19th century. Three centuries later the Taiping Rebellion caused another large-scale disruption of population. Many people in the lower Yangtze valley were massacred by the opposing armies, and the survivors suffered from starvation. After the rebellion was defeated, people from Hubei, Hunan, and Henan moved into the depopulated areas of Jiangsu, Anhui, and Zhejiang, where farmland was lying abandoned and uncultivated. Similar examples include the Nian Rebellion in the Huai River region in the 1850s and ’60s, the Muslim rebellions in Shaanxi and Gansu in the 1860s and ’70s, and the great Shaanxi and Shanxi famine of 1877–78.
The most significant internal population movement in modern Chinese history was that of the Han to Manchuria (now known as the Northeast). Even before the Qing (Manchu) dynasty was established in 1644, Manchu soldiers had launched raids into North China and captured Han labourers, who were then obliged to settle in Manchuria. An imperial decree in 1668 closed the area to further Han migration, but this ban was never effectively enforced. By 1850, Han colonizing settlers had become dominant in Manchuria. The ban was later partially lifted, partly because the Manchu rulers were harassed by disturbances in China proper and partly because the Russian Empire continually tried to invade sparsely populated and thus weakly defended Manchuria. The ban was finally removed altogether in 1878, but settlement was encouraged only after 1900.