When you get a closeup of the US, you'll have a better glimpse of the breakdown. I kept saying, "Do no people of color have locks in other regions of the US?"
Then, I googled African American population in the United States and this is what I came up with.Well, I guess it all makes sense now. I am sure in the states where the population of African Americans is sparse, they may be some locked brothers and sisters, but the East Coast and South/South East Coastal states dominate. When I visited the DC-Maryland area in 2007 it was a love fest seeing all the locked brothers and sisters. The more we blog about it, vlog and document it pictorially, the more ubiquitous it will become.