mesorregião

A mesoregion is an intermediate-level administrative or statistical division found in some countries, particularly in Brazil. It is a grouping of municipalities, often formed for the purpose of regional planning, statistical analysis, or administrative organization. The mesoregion sits hierarchically between the microregion and the macroregion, representing a distinct geographical and socioeconomic area within a larger state or province.

In Brazil, mesoregions were defined by the Brazilian Institute of Geography and Statistics (IBGE) as a subdivision of the states. They were intended to group microregions that shared similar characteristics, such as economic activities, infrastructure, and cultural aspects. The concept was primarily used for statistical purposes and to facilitate the understanding of regional disparities. While the IBGE has since shifted its focus to other regional classifications, the concept of mesoregions remains relevant in understanding Brazil's historical administrative and statistical frameworks. The specific criteria for defining mesoregions varied, but they generally aimed to create spatially coherent units for data collection and analysis.