While this is impressive, I think it falls short of Dallas-Fort Worth. Since there was no definition given for "Atlanta area", I made my own. DFW has 34 18-hole courses rated 3.0 or higher within 40 miles of the center of the metro area, according to the map on this site. Atlanta has 23 at 3.0 or higher on this list. DFW has 6 courses 4.0 or higher; Atlanta has 4. DFW has 12 course at 3.75 or higher; Atlanta has 8.
Turner Park, 4.08
Veteran's Park, 3.89
Fritz Park, 3.82
Gateway Park West, 3.50
Crossroads of Life, 4.00
North Park, 3.35
Lester Lorch -- Beaver, 4.16
Lester Lorch -- Coyote, 4.25
Arcadia, 3.57
Heritage, 4.04
Jimmy Porter, 3.19
Greenbelt, 3.03
Cedar Valley, 3.50
Trophy Club, 3.95
Bicentennial, 3.65
Bailey Lake, 3.00
Haslet Community Center, 3.08
Tom McCutcheon, 3.81
The Jaranator, 4.28
B.B. Owen, 3.24
Saddle Hills, 3.46
Z-Boaz, 3.98
Bill Allen, 3.78
Paschall, 3.64
Audubon, 3.49
Brown-Singleton, 3.50
Ash Creek, 3.21
Shawnee, 3.17
McCord, 3.36
North Lake -- Lakeside, 3.00
Weatherford, 3.70
Harry Myers, 4.17
Alex Clark, 3.46
Towne Lake, 4.09
The Cedars, 3.07