- Young city refers to a city that has a relatively young population, with a high percentage of its residents being young adults or children. This could be due to factors such as a large number of universities or colleges in the area, attracting young students, or a high birth rate and growing families. A young city often has a vibrant and dynamic atmosphere, with a focus on cultural activities, entertainment, and nightlife. However, it may also face challenges related to affordable housing and infrastructure to support its growing population.