although the natural population growth rate has slowed down, the trend of population gathering to metropolis are still accelerating. according to the statistical data based on 33 first and second tier chinese cities, population increments in 13 cities has surpassed 100,000 , with six of them reaching 200,000 in 2017, and the top 3 cities are shenzhen, guangzhou, and hangzhou.
in 2017, hangzhou had 9.468 million residents at the end of the year, an increase of 280,000 from the end of 2016 and a rise of 3.05 percent. in 2015, 2016, and 2017, the number of new residents in hangzhou soared by 126,000, 170,000 and 280,000 respectively, indicating a rapid growth.
hangzhou's technology industry has grown by more than 20% in the past three years, making it the main engine of economic growth. the development of the industry has also led to a rapid influx of people.