Zhoushan, China

With a population of just over 1.1 million, Zhoushan is the largest city you've likely never heard of. Tucked away in an archipelago off China's eastern coast, this isolated municipality boasts a thriving shipping industry and scenic islands - but also a persistent bureaucratic headache. The tax burden is heavy, with per capita disposable income for urban residents reaching over 34,000 yuan. And while the climate is mild, the region sees significant rainfall year-round. Ultimately, Zhoushan is best suited for those drawn to its unique island geography and maritime culture, rather than those seeking an easy urban life.