Above is a graphic displaying the Republican share of the two-party votes relative to square miles per voter (i.e. population density). As expected, Democrats won a larger fraction of urban areas, on average, while Republicans won more rural areas. Democrats also won a larger share of college graduates, all be it a slim margin 49% to 45%, but won by a substantial margin in both non-white college graduates and the non-white non-college graduate population – 71% and 75% respectively.
Below is a graphic displaying the percentage change in voting behavior for various demographic groups compared to the 2012 election. Trump won a larger percentage of votes in all categories (including Male, White, Black, Hispanic, and Asian) except for Women voters who voted by a 1% larger margin for Hillary than for Obama in 2012.