A Micropolitan Statistical Area (μSA) is a geographic region defined by the United States Office of Management and Budget. It typically consists of a core city with a population of at least 10,000 but less than 50,000, along with surrounding areas that are economically and socially connected to that city. These areas are important for understanding local economies and demographics. They often include smaller towns and rural regions that rely on the core city for jobs, services, and cultural activities, making them vital components of the broader U.S. economy.