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.
Number of people living in the census tract according to 5-year American Community Survey data from 2017
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
A calculation of how urban or rural a given area is; calculated as the natural logarithm of adj_radiuspop_5