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 17 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -123.7283 ymin: 18.11774 xmax: -65.81565 ymax: 46.38562
#> Geodetic CRS: NAD83
#> STATEFP COUNTYFP COUNTYNS GEOID NAME NAMELSAD LSAD
#> 1 31 039 00835841 31039 Cuming Cuming County 06
#> 2 53 069 01513275 53069 Wahkiakum Wahkiakum County 06
#> 3 35 011 00933054 35011 De Baca De Baca County 06
#> 4 31 109 00835876 31109 Lancaster Lancaster County 06
#> 5 31 129 00835886 31129 Nuckolls Nuckolls County 06
#> 6 72 085 01804523 72085 Las Piedras Las Piedras Municipio 13
#> CLASSFP MTFCC CSAFP CBSAFP METDIVFP FUNCSTAT ALAND AWATER INTPTLAT
#> 1 H1 G4020 <NA> <NA> <NA> A 1477644346 10691216 +41.9158651
#> 2 H1 G4020 <NA> <NA> <NA> A 680980770 61564427 +46.2946377
#> 3 H1 G4020 <NA> <NA> <NA> A 6016818946 29090018 +34.3592729
#> 4 H1 G4020 <NA> <NA> <NA> A 2169272978 22847034 +40.7835474
#> 5 H1 G4020 <NA> <NA> <NA> A 1489645185 1718484 +40.1764918
#> 6 H1 G4020 <NA> <NA> <NA> A 87748418 32509 +18.1871483
#> INTPTLON geometry
#> 1 -096.7885168 MULTIPOLYGON (((-96.55515 4...
#> 2 -123.4244583 MULTIPOLYGON (((-123.7276 4...
#> 3 -104.3686961 MULTIPOLYGON (((-104.8934 3...
#> 4 -096.6886584 MULTIPOLYGON (((-96.68493 4...
#> 5 -098.0468422 MULTIPOLYGON (((-98.2737 40...
#> 6 -065.8711890 MULTIPOLYGON (((-65.85703 1...
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()