urbanization-index/urbanization-census-tract: 40

This table contains the data behind the story How Urban Or Rural Is Your State? And What Does That Mean For The 2020 Election?

urbanization-state.csv contains FiveThirtyEight's urbanization index for every state. This number is calculated as the natural logarithm of the average number of people living within a five-mile radius of a given resident in each census tract in that state.

urbanization-census-tract.csv contains FiveThirtyEight's urbanization index for every census tract.

Column	Description
statefips	FIPS code for each state
state	Name of state
gisjoin	Geographic Identifier for the census tract from the 2010 census
lat_tract	Latitude of the center of the census tract
long_tract	Longitude of the center of the census tract
population	Number of people living in the census tract according to 5-year American Community Survey data from 2017
adj_radiuspop_5	Estimate of the number of people within a 5-mile radius of a census tract. For a census tract that is more than 5 miles away any other census tract (centroid to centroid), this number is decreased based on the minimum distance to the nearest census tract
urbanindex	A calculation of how urban or rural a given area is; calculated as the natural logarithm of adj_radiuspop_5