tinytiger is designed to be low dependency to allow
packages and newer R users to use TIGER lines and shapefiles without
accruing non-standard dependencies. It has four dependencies: -
sf, needed to work with shapefiles - curl,
needed for downloading the files from the Census Bureau -
cli, used to create clear errors, warnings, and messages. -
glue, used for constructing complex URLs and already a
dependency of cli
While cli is not necessary, it fits within our goals
that tinytiger to be friendly for package development and
new users, as cli is one of the most-widely downloaded R
packages and comes with but one dependency itself.
Using tinytiger
tinytiger has methods to download TIGER shapes for most
Census geographies. A full list are available on the tinytiger
website.
To download any shapes, we can use the corresponding function for the
geography. All functions are prefixed with tt_.
For counties, for example, we can run:
counties <- tt_counties()
head(counties)
#> Simple feature collection with 6 features and 18 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -104.9808 ymin: 26.29927 xmax: -79.13832 ymax: 44.19608
#> Geodetic CRS: NAD83
#> STATEFP COUNTYFP COUNTYNS GEOID GEOIDFQ NAME NAMELSAD LSAD
#> 1 40 075 01101825 40075 0500000US40075 Kiowa Kiowa County 06
#> 2 46 079 01265776 46079 0500000US46079 Lake Lake County 06
#> 3 37 033 01008542 37033 0500000US37033 Caswell Caswell County 06
#> 4 48 377 01383974 48377 0500000US48377 Presidio Presidio County 06
#> 5 39 057 01074041 39057 0500000US39057 Greene Greene County 06
#> 6 48 489 01384030 48489 0500000US48489 Willacy Willacy County 06
#> CLASSFP MTFCC CSAFP CBSAFP METDIVFP FUNCSTAT ALAND AWATER INTPTLAT
#> 1 H1 G4020 <NA> <NA> <NA> A 2629039892 40296743 +34.9214893
#> 2 H1 G4020 <NA> <NA> <NA> A 1457916151 31746795 +44.0284497
#> 3 H1 G4020 <NA> <NA> <NA> A 1102042927 8293623 +36.3943252
#> 4 H1 G4020 <NA> <NA> <NA> A 9985057447 1773188 +30.0058912
#> 5 H1 G4020 212 19430 <NA> A 1071302625 6798109 +39.6874785
#> 6 H1 G4020 154 39700 <NA> A 1529680719 502856285 +26.4818607
#> INTPTLON geometry
#> 1 -098.9816168 MULTIPOLYGON (((-98.95506 3...
#> 2 -097.1232229 MULTIPOLYGON (((-96.88886 4...
#> 3 -079.3396193 MULTIPOLYGON (((-79.14343 3...
#> 4 -104.2616192 MULTIPOLYGON (((-104.9808 3...
#> 5 -083.8948943 MULTIPOLYGON (((-84.10668 3...
#> 6 -097.5947313 MULTIPOLYGON (((-97.86187 2...Other options for downloads are:
tt_address_ranges()tt_ai_an_nh_areas()tt_anrc()tt_area_landmarks()tt_area_water()tt_block_groups()tt_blocks()tt_cbsa()tt_coastline()tt_congressional_districts()tt_consolidated_cities()tt_counties()tt_county_subdivisions()tt_csa()tt_elementary_school_districts()tt_estates()tt_linear_water()tt_metropolitan_divisions()tt_military()tt_new_england_cities()tt_new_england_city_divisions()tt_new_england_combined_areas()tt_places()tt_point_landmarks()tt_polygon_edges()tt_polygon_faces()tt_primary_roads()tt_primary_secondary_roads()tt_puma()tt_rails()tt_roads()tt_secondary_school_districts()tt_state_leg_lower()tt_state_leg_upper()tt_states()tt_subbarrios()tt_tracts()tt_tribal_block_groups()tt_tribal_subdivisions()tt_tribal_tracts()tt_uac()tt_unified_school_districts()tt_voting_districts()tt_zcta()