Note that these figures can be used historically in a Pulp scenario set in Los Angeles. When I was attending high school in the Highland Park neighborhood on the northeast corner of Los Angeles, near Pasadena, I was told that neighborhood had the highest concentration of KKK members in the USA during the 1920's. Having recently moved from the South to Los Angeles, I thought that was pretty odd. Never checked out whether that was true, but apparently the KKK was there in force.