How to describe how big and small Shenzhen is without boasting?

Most cities in Guangdong are locals, and Shenzhen is special. Shenzhen is an immigrant city, and there are more foreigners than locals. In Shenzhen, local people are rarely seen, and there may be few in the whole company, so it can be said that there are very few people in Shenzhen, so it is very small, but it is not a foreigner who is a native of Shenzhen, which has largely led to the expansion of Shenzhen, which is a bit circuitous, but it is true.