The driving distance from Augusta, GA to Killeen, TX is 1,075 miles. The halfway point would be at 537 miles, which would place you about 10 miles west of Jackson,MS if you were travelling on I-20.
Get out a map, find the two towns, and estimate the midway point. This is an insane question to ask here.
corsicana
La
Kelley, Louisiana is halfway between Killeen & Mary Esther
The half way point between O'fallon Mo and Killeen Texas would Ga. This is where i would stop and get a room.
Santa Rosa, NM
The halfway point between Las Vegas, Nevada and Marcellus, Michigan is Cornell, Nebraska.
Independence, California is about the halfway point.
Las Vegas
Groom, Texas is the halfway point between Northport, Alabama and Las Vegas, Nevada. Please see the related link for Meetways, a site providing halfway point information.
Las Vegas is generally considered the halfway point between Salt Lake City and Las Vegas.
The city that is halfway between Virginia and Lexington, KY is Clear Creek, West Virginia. It is the geographical halfway point.
Tolani Lake, AZ
Winslow, AZ
Amarillo, Texas is midway between Thibodaux LA and las Vegas Nevada