A-N-N-A is definitely a known thing.
4 Little Egypts:
Coal Country in Perry, Franklin, Williamson, and Saline down to Rte 13. These areas are heavily influenced by Appalachian migration and South and Eastern European immigration from the early 1900s A lot of "sun down laws" in these towns. A lot of racial animosity dates to the 1920s when coal companies used blacks from the South as strike breakers. Historically blacks only lived in DuQuoin (Perry), Harrisburg (Saline), and Herrin (really Colp in Williamson). They were completely excluded from Franklin County, and this was a known thing as recently as the late 1990s. Now there are black residents in all of these communities and school districts. The current HS Football coach in my hometown is a black guy. Attitudes have changed quite a bit in the last 20 years.
The RTE 13 suburbs stretching from Carbondale through Carterville and Herrin to Marion. This is like the suburbs anywhere. One is higher end and almost exclusively white (Carterville) one is really unequal by income (Carbondale) one is mostly blue collar (Herrin) one is a mix of all three (Marion).
The Highlands of Union, Johnson, Hardin, Pope, and Gallatin counties that overlap with the Shawnee National Forest. This is Appalachia, it is indistinguishable from E KY if you've ever been that way. It's where Anna-Jonesboro is located (Jonesboro is the county seat of Union.)
The River Counties of Alexander, Pulaski, and Massac. These counties have higher numbers of black residents with some communities and school districts that are all black or mostly black. This area is a lot like the MO Bootheel and Western TN, racial attitudes included.
Definitely had not heard this story before. Great to see it changing with the younger generation.