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The main goal of this paper is to present an evaluation of the urban hierarchy of a sub-region of the Brazilian Amazon Region, the Delta of the Amazon River. We analyzed the Delta cities regarding their ability to provide access to basic services (infrastructure) and employment to their residents, or even the residents of adjacent towns. The results were produced using data from: census, the Annual List of Social Information (RAIS), the number of industrial establishments (Federation of Industries of the State of Pará - FIEPA), the year the cities were founded, distance from the cities to the state capitals, and the number of bank branches. A general index was created, and it allowed defining to what degree the cities were connected, and proposing an urban hierarchy at the Delta Region. Regardless of different historical processes, age, size and importance in the Regional Urban Network, the cities of the Delta can be compared in terms of infrastructure available to their population. At the same time, small cities are experiencing significant population growth, and expansion of urban areas without investment proportional to their needs.

The urban hierarchy at the delta of the Amazon River and the importance of small cities