How did the problems Martin Luther King Jr. addressed in the South differ from the problems in the north?

In the South King dealt primarily with legal issues, such as changing or abolishing Jim Crow laws and police-enforced segregation. In the North he had to deal with economic issues. The cities were filled with poor people who weren't being given a chance to rise out of povert

In the South, Martin Luther King, Jr. dealt with issues of racial discrimination, forced segregation by the police, and legal issues like the abolition of the Jim Crow laws. In the North, he had to deal with economic issues. Poor people were everywhere in the cities and they had no chance of improving their lives.