Population centers are geographic areas where a significant number of people live. These centers can be cities, towns, or regions that attract residents due to job opportunities, amenities, and services. They often serve as hubs for economic activity and cultural exchange, influencing surrounding areas. The concept of a population center is important for urban planning and resource allocation. Governments and organizations analyze these areas to understand demographic trends and to provide necessary infrastructure, such as transportation and healthcare. Examples of major population centers include New York City, Tokyo, and Mumbai.