US County boundaries from the US Census Bureau's MAF/TIGER geographic database in EPSG:4269, with all data except state FIPS codes and land area removed.
Usage
data('counties_4269')
Arguments
Format
A sf]{DataFrame} object
References
United States Census Bureau. Data accessed from the US Census Bureau website: https://www2.census.gov/geo/tiger/GENZ2018/shp/cb_2018_us_county_20m.zip; accessed 13 March 2020