Urban communities are usually described to be large, with people engaged in various occupations such as manufacturing, commerce, industry, profession, or local governments. A city is more than just a great group of people, buildings, and non-agricultural occupation, is characterized by a complex and impersonal social relations. One city may apply to internally organized community containing several species in the spatial areas such as Central Business District and medium-sized commercial properties. Society, with various institutions, groups and classes that include functionally. Due to the large population of the city, there are various and complex structure.

Heterogeneity leads to a higher degree of specialization and division of labor as a result of the interdependence between people. Contacts tend to be impersonal and anonymous. The population density of the city and reflects the complexity of the social structure. Social institutions are different in urban areas than in rural areas. Complex forms of economic institution are placed to keep people in line with economic progress.