Update of Municipal Maps

Description

The "Update of Municipal Maps" (1) refers to Municipal Maps of the Municipalities that have had their borders updated somehow. These updates have not reached all the Brazilian municipalities, so that maps have not been produced for all of them.

Municipal Maps represent the intramunicipal Political Administrative Division (districts and subdistricts), intermunicipal and interstate borders and the main planimetric elements and hydrography elements.

The Municipal Maps annually produced by the IBGE consider the updated status of the Brazilian Political and Administrative Division (DPA). The dynamics of DPA reflects the updates in the municipal borders of the municipalities, within the Technical Cooperation Agreements (ACT) between the IBGE and state bodies in charge of the Political Administrative Division.

The territory updates occur as a result of one of the following factors: publication of a new law, legal decision and technical reports issued by the respective state bodies in charge of the political-administrative division of each state and sent to the IBGE. However, we explain the most common factors are cartographic adjustments following technical reports produced by the States and the publication by the State of a new law that updates municipal borders.

The versions of 2012 to 2019 update the collection of the 2010 Census Municipal Statistical Maps:
https://www.ibge.gov.br/geociencias/cartas-e-mapas/mapas-municipais/27440-mapas-municipais-para-fins-estatisticos.html

And the versions between 2021 and 2022 update the collection of the 2020 Municipal Maps:
https://www.ibge.gov.br/geociencias/cartas-e-mapas/mapas-municipais/31452-colecao-de-mapas-municipais.html

Note(1): The publication "Update of Municipal Maps" went into effect as a new version of "Municipal Maps of Population Estimates"

About the publication - 2019

Municipal Maps for Statistical Purposes of the 2019 Population Estimates

The annual population estimates produced by the IBGE take into account the current condition of the Brazilian Political-Administrative Division - DPA, including the updating occurred in the municipal borders under the scope of the covenants of technical cooperation the IBGE maintains with state offices for the consolidation of the municipal borders.

The territorial changes occurred since the release of the results of the 2010 Population Census, that impacted on the 2019 Population Estimates, were due to one of the following factors:

new legislation changing the descriptions of the municipal borders;
cartographic adjustments officially informed to the IBGE by state offices;
better identification and cartographic representation of the municipal polygons, due to the innovations of the geotechnologies that allow the use of several cartographic inputs and equipment.

The territorial updating sent by these offices to the IBGE in the period between May 1, 2018 and April 30, 2019 were incorporated into the methodology of the 2019 Population Estimates.

The following chart summarizes the amount of municipalities, by Federation Unit, with territorial updating involving population rearrangement and/or significant adjustments in the cartographic representation of the municipal borders.