Shenzhen Special Economic Zone was founded in 1980. It is the second largest special economic zone in China besides Hainan Province. Shenzhen is a newly emerging immigrant city. Most citizens came from other places in China and have moved to Shenzhen to take advantage of the many opportunities that are available. It is a long and narrow city with the length of 81.4 kilometers from east to north, but only 10.8 kilometers wide from north to south.
Over the last twenty years, Shenzhen has experienced rapid growth in its economy, society and other fields and has been transformed to a modern city from a small border town. Shenzhen's infrastructure has been dramatically improved, so today it is one of the most modern cities in China.