What is largest coast city?

The largest coast city in the world is Shanghai, China. Shanghai is located on the east coast of China, at the mouth of the Yangtze River. The city has a population of over 24 million people and is the largest city in China. Shanghai is a major economic, financial, and cultural center in China. The city is home to many of the country's largest corporations and financial institutions. Shanghai is also a popular tourist destination, with many attractions such as the Bund, the Shanghai Museum, and the Yuyuan Garden.