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ZIP Code Tabulation Areas (ZCTAs) are generalized areal representations of United States Postal Service (USPS) ZIP Code service areas. Please see the link provided for information on how the Census Bureau creates ZCTAs, and for important information on the differences between ZCTAs and ZIP Codes.
zctas(cb = FALSE, starts_with = NULL, year = NULL, state = NULL, ...)If cb is set to TRUE, download a generalized (1:500k) ZCTA file. Defaults to FALSE (the most detailed TIGER/Line file). A warning: the detailed TIGER/Line ZCTA file is massive (around 502MB unzipped), and the generalized version is also large (64MB zipped). Be prepared for this especially if you have a slower internet connection.
Character vector specifying the beginning digits of the
ZCTAs you want to return. For example, supplying the argument
starts_with = c("75", "76") will return only those ZCTAs that begin
with 75 or 76. Defaults to NULL, which will return all ZCTAs in the US.
the data year (defaults to 2020).
the state for which you are requesting data; only available for 2000 (TIGER/Line and CB shapefiles) and 2010 (TIGER/Line shapefiles only)
arguments to be passed to the underlying `load_tiger` function, which is not exported.
Options include class, which can be set to "sf" (the default) or "sp" to
request sf or sp class objects, and refresh, which specifies whether or
not to re-download shapefiles (defaults to FALSE).
https://www.census.gov/programs-surveys/geography/guidance/geo-areas/zctas.html
Other general area functions:
block_groups(),
blocks(),
counties(),
county_subdivisions(),
places(),
pumas(),
school_districts(),
states(),
tracts()
# NOT RUN {
# Example: get ZCTAs that intersect the Memphis, TN urbanized area
library(tigris)
zcta1 <- zctas(cb = TRUE, starts_with = c("37", "38", "72"))
uas <- urban_areas()
memphis_ua <- uas[grep("Memphis", uas$NAME10), ]
mem_zcta <- zcta1[memphis_ua, ]
plot(mem_zcta$geometry)
# }
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