Statistically speaking, its quite difficult to tell exact numbers of lynchings in the South or anywhere. Every group in the United States was subject to lynching, Asian Americans, Hispanic Americans, Native Americans, Whites, other extremely small minorities were under danger of being lynched by a mob. There's even an account of a Syrian-American being lynched in Florida in the 1920s. This doesn't discount the fact that by and large, lynch mobs typically attacked Black Americans, their numbers remain the highest.
While the Tuskegee Institute Lynching Numbers are a good place to start, they are highly faulty. The numbers are delineated between black and white which is simply an inefficient way to gather numbers. Asian Americans,Hispanic Americans, and Native Americans were counted as either White or Black depending on who found the data. In addition to this, the Tuskegee counts are incomplete by today's standards. What defines a Lynching has changed and is still under debate.