Make crosswalk data for U.S. Census blocks and tracts

make_block_xwalk() joined U.S. Census blocks data from tigris::blocks() to a data frame from tigris::tracts() to provide a crosswalk between both geographies. If year = 2020, the suffix parameter is not used. If year is any other year than 2020, the by parameter must be changed from the default value of c("TRACTCE20" = "TRACTCE"). 2020 is also the only year where tigris::blocks() includes the population and household count data required to use this crosswalk data frame with make_area_xwalk().

Usage

make_block_xwalk(
  state,
  county = NULL,
  year = 2020,
  by = c(TRACTCE20 = "TRACTCE"),
  keep_zipped_shapefile = TRUE,
  suffix = c("_block", "_tract"),
  crs = 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.

year

the data year; defaults to 2021

by

Specification of join variables in the format of c("block column name for tract" = "tract column name"). Passed to dplyr::left_join().

keep_zipped_shapefile

Passed to tigris::blocks() and tigris::tracts() to keep and re-use the zipped shapefile.

suffix

Suffixes added to the output to disambiguate column names from the block and tract data. Unused for 2020 data.

crs

Coordinate reference system to return.

...

Arguments passed on to tigris::blocks