A microregion () was a legally defined area in Brazil consisting of a group of municipalities. They were abolished in 2017 and replaced by Intermediate and Immediate Geographic Regions. Microregions were grouped together into mesoregions. In theory, Brazilian law provided for member municipalities to cooperate on matters of common interest, but in practice, the divisions were used primarily for statistical purposes by the Brazilian Institute of Geography and Statistics.
List of microregions In 2014, there were 5,570 municipalities, divided among 558 microregions and 137 mesoregions:Instituto Brasileiro de Geografia e Estatística, territorial division.
State Mesoregions Microregions Municipalities Central-West Brazil 15 52 466 Federal District 1 1 1 Goiás 5 18 246 Mato Grosso 5 22 141 Mato Grosso do Sul 4 11 79 Northeast Brazil 42 188 1794 Alagoas 3 13 102 Bahia 7 32 417 Ceará 7 33 184 Maranhão 5 21 217 Paraíba 4 23 223 Pernambuco 5 19 185 Piauí 4 15 224 Rio Grande do Norte 4 19 167 Sergipe 3 13 75 North Brazil 20 64 450 Acre 2 5 22 Amapá 2 4 16 Amazonas 4 13 62 Pará 6 22 144 Rondônia 2 8 52 Roraima 2 4 15 Tocantins 2 8 139 Southeast Brazil 37 160 1668 Espírito Santo 4 13 78 Minas Gerais 12 66 853 Rio de Janeiro 6 18 92 São Paulo 15 63 645 South Brazil 23 94 1191 Paraná 10 39 399 Rio Grande do Sul 7 35 497 Santa Catarina 6 20 295 Total 136 557 5569
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