https://www.nchsaa.org/intranet/downloadManagerControl.php?mode=getFile&elementID=9510&type=5&atomID=11805
i'll leave charlotte and east to another thread 
but it looks like gaston county stays as one conference as a split 2a/3a unfortunately its a 7 team league which means someone (likely NG) ends the footballseason again with a bye. and left north Lincoln in the iredell conference. stupid. and having only 2 2a schools means both make the playoffs in everything 
Hunter Huss (2a)
Stuart Cramer (2a)
North Gaston (3a)
East Gaston (3a)
Ashbrook (3a)
Forestview (3a)
South Point(3a)
most of the old southwestern 3a is in a 2a/3a league. replace crest who was 4a at the time with North Gaston and South Point and you have what was the southwestern 3a when i played.
cleveland-rutherford
Chase (2a)
East Rutherford (2a)
RS Central (2a)
Shelby (2a)
Burns (3a)
Kings Mtn (3a)
Crest (3a)