Census Designated Places (CDPs) are the statistical counterparts of incorporated places, and are delineated to provide data for settled concentrations of population that are identifiable by name but are not legally incorporated under the laws of the state in which they are located.
places(state = NULL, cb = FALSE, year = NULL, ...)The two-digit FIPS code (string) of the state you want. Can also
be state name or state abbreviation. When NULL and combined with
cb = TRUE, a national dataset of places will be returned for years
2019 and later.
If cb is set to TRUE, download a generalized (1:500k) cartographic boundary file. Defaults to FALSE (the most detailed TIGER/Line file).
the data year; defaults to 2021
arguments to be passed to internal function load_tiger, which is not exported. See 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 to FALSE, do not display download progress bar (helpful for R Markdown documents). Defaults to TRUE.
keep_zipped_shapefile If set to TRUE, do not delete zipped shapefile (stored in temporary directory or TIGRIS_CACHE_DIR
depending on the configuration of global option "tigris_use_cache"). Defaults to FALSE.
refresh Whether to re-download cached shapefiles (TRUE or FALSE) . The default is either FALSE 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 class bbox, or a length-4 vector of format c(xmin, ymin, xmax, ymax) that can be converted to a bbox. Geometries that intersect the input to filter_by will be returned.
The boundaries usually are defined in cooperation with local or tribal officials and generally updated prior to each decennial census.
These boundaries, which usually coincide with visible features or the boundary of an adjacent incorporated place or another legal entity boundary, have no legal status, nor do these places have officials elected to serve traditional municipal functions.
CDP boundaries may change from one decennial census to the next with changes in the settlement pattern; a CDP with the same name as in an earlier census does not necessarily have the same boundary.
CDPs must be contained within a single state and may not extend into an incorporated place.
There are no population size requirements for CDPs.
https://www2.census.gov/geo/pdfs/reference/GARM/Ch9GARM.pdf
Other general area functions:
block_groups(),
blocks(),
counties(),
county_subdivisions(),
pumas(),
school_districts(),
states(),
tracts(),
zctas()