At the end of 2019, the city's registered population was 3.3192 million, of which the urban population was 2.3572 million and the rural population was 962,000. At the end of the year, the city's resident population was 3.7909 million, an increase of 37,300 over the end of the previous year. Among them, the urban population was 3.0721 million, accounting for 81.04% of the permanent population (urbanization rate of the permanent population), an increase of 0.01 percentage points from the end of the previous year. The annual birth population was 34,100, with a birth rate of 9.0‰; the death population was 21,000, with a death rate of 5.53‰; the natural population growth rate was 3.47‰. [10]
According to the Bulletin of the Seventh National Census of Lanzhou City, as of 0:00 on November 1, 2020, the resident population of Lanzhou City was 4,359,446. [59]
According to the results of the province's population change sample survey in 2021, the permanent resident population of Lanzhou will be 4,384,300 at the end of 2021, an increase of 12,500 [86] . The male population is 2.2570 million and the female population is 2.1273 million. The annual birth population was 33,300, and the birth rate was 7.61‰; the death population was 25,600, and the population death rate was 5.84‰; the natural population growth rate was 1.77‰. The population of 0 to 15 years old is 652,400, accounting for 14.88% of the city's resident population; the working age population of 16 to 59 years old is 3,004,600, accounting for 68.53% of the city's resident population; the population of 60 years old and above is 727,400 , accounting for 16.59% of the city's resident population, including 528,400 people aged 65 and over, accounting for 12.05% of the city's resident population. The urban permanent population is 3.6635 million, and the urban population accounts for 83.56% of the city's permanent population (urbanization rate). [81]
