Looks like only a few campuses are viable.
National American University Campus Populations
(Source: National Center for Education Statistics)
Salem, VA 980
Kettering, OH 22
Lexington, KY 233
Youngstown, OH 34
Albuquerque, NM (2) 190+163
Austin, TX (2) 222+?
Bellevue, NE 98
Bloomington, MN 68
Brooklyn Center, MN 125
Burnsville, MN 44
San Antonio, TX 287
Centennial, CO 176
Colorado Springs, CO (2) 196 + 152
Ellsworth AFB, SD 295
Garden City, KS 48
Georgetown, TX 138
Houston, TX 77
Independence, MO 255
Indianapolis, IN 96
Lee's Summit, MO 154
Lewisville, TX 107
Mesquite, TX 105
Overland Park, KS 207
Rapid City, SD 1,346
Richardson, TX 150
Rochester, MN 81
Roseville, MN 99
Sioux Falls, SD 219
Tulsa, OK 172
Watertown, SD 70
Aurora, Co (Westwood teachout site) ?
Wichita, KS (2) 130+90
Kansas City, MO 149
http://collegemeltdown.blogspot.com/2018/09/national-american-university-and.html