Similarities--whites were in the dominant group in each region. Violence was common to exert power over the minority racial group to include lynchings. Voting and citizenship restrictions were also in place against the minority groups.
Differences--the targeted group in the South were blacks and in the West were blacks but also the Chinese population. In the South, racial order was the motivation for much of the racial conflict. In the West, job competition was the basis for much of the racial conflict.