county_subdivisions {tigris} | R Documentation |
Download a county subdivision shapefile into R
Description
From the US Census Bureau (see link for source, and more information): "All counties and statistically equivalent entities consist of one or more geographic units that the Bureau of the Census recognizes as county subdivisions. The two major types of county subdivisions are minor civil divisions(MCDs) and census county divisions (CCDs). A State has either MCDs or their statistical equivalents, or CCDs; it cannot contain both."
Usage
county_subdivisions(state, county = NULL, cb = FALSE, year = NULL, ...)
Arguments
state |
The two-digit FIPS code (string) of the state you want. Can also be state name or state abbreviation. |
county |
The three-digit FIPS code (string) of the county you'd like to subset for, or a vector of FIPS codes if you desire multiple counties. Can also be a county name or vector of names. |
cb |
If cb is set to TRUE, download a generalized (1:500k) file. Defaults to FALSE (the most detailed TIGER/Line file) |
year |
the data year; defaults to 2022 |
... |
arguments to be passed to internal function |
Additional Arguments
Additional arguments that can be passed in ...
are:
-
class
Desired class of return object:"sf"
(the default) or"sp"
. sp classes should be considered deprecated as of tigris version 2.0, but legacy support is still available. -
progress_bar
If set toFALSE
, do not display download progress bar (helpful for R Markdown documents). Defaults toTRUE
. -
keep_zipped_shapefile
If set toTRUE
, do not delete zipped shapefile (stored in temporary directory orTIGRIS_CACHE_DIR
depending on the configuration of global option"tigris_use_cache"
). Defaults toFALSE
. -
refresh
Whether to re-download cached shapefiles (TRUE
orFALSE
) . The default is eitherFALSE
or the value of global option"tigris_refresh"
if it is set. Specifying this argument will override the behavior set in"tigris_refresh"
global option. -
filter_by
Geometry used to filter the output returned by the function. Can be an sf object, an object of classbbox
, or a length-4 vector of formatc(xmin, ymin, xmax, ymax)
that can be converted to a bbox. Geometries that intersect the input tofilter_by
will be returned.
See Also
https://www2.census.gov/geo/pdfs/reference/GARM/Ch8GARM.pdf
Other general area functions:
block_groups()
,
blocks()
,
counties()
,
places()
,
pumas()
,
school_districts()
,
states()
,
tracts()
,
zctas()
Examples
## Not run:
library(tigris)
or <- county_subdivisions('Oregon', c('Linn', 'Benton'))
plot(or$geometry)
## End(Not run)