“Any clues as to why the huge disparity?”
All abortion clinics are located in black areas. (easy access for the blacks)
If you are white do you really want to travel to the black area of town for an abortion? Think about it.
Might be true of other states.
In MS the single abortion clinic is located just across the street from the biggest hospital in the state. And directly in one of the few remaining white neighborhoods in Jackson. It’s easily accessed via I-55 and a major 4 lane thoroughfare w/o traveling through black neighborhoods.
And that is by design.