read_municipal_seat: Download spatial data of municipal seats (sede dos...

In geobr: Download Official Spatial Data Sets of Brazil

Download spatial data of municipal seats (sede dos municipios) of Brazil

Description

This function reads the official data on the municipal seats (sede dos municipios) of Brazil. The data brings the geographical coordinates (lat lon) of municipal seats for various years since 1872. Original data by the Brazilian Institute of Geography and Statistics (IBGE).

Usage

read_municipal_seat(
  year,
  code_muni = "all",
  output = "sf",
  showProgress = TRUE,
  cache = TRUE,
  verbose = TRUE
)

Arguments

year	Numeric. Year of the data in YYYY format.
code_muni	The 7-digit code of a municipality. If code_muni = "all" (Default), the function downloads all the data available in the country. Alternatively, if a two-digit state code or a two-letter uppercase abbreviation of a state is passed (e.g. 33 or "RJ"), all data of that state are downloaded. Municipality codes can be consulted with the geobr::lookup_muni() function.
output	String. Type of object returned by the function. Defaults to "sf", which loads the data into memory as an sf object. Alternatively, "duckdb" returns a lazy spatial table backed by DuckDB via the duckspatial package, and "arrow" returns an Arrow dataset. Both "duckdb" and "arrow" support out-of-memory processing of large data sets.
showProgress	Logical. Defaults to TRUE display progress bar.
cache	Logical. Whether the function should read the data cached locally, which is faster. Defaults to cache = TRUE. By default, geobr stores data files in a temporary directory that exists only within each R session. If cache = FALSE, the function will download the data again and overwrite the local file.
verbose	A logical. If TRUE (the default), the function prints informative messages and shows download progress bar. If FALSE, the function is silent.

Value

An ⁠"sf" "data.frame"⁠ OR an ArrowObject

Examples

# Read municipal seats in an specific year
m <- read_municipal_seat(year = 2022)

geobr documentation built on June 23, 2026, 5:06 p.m.