Tampa
The Dallas Cowboys in Texas Stadium. Tampa is on the east coast and Dallas is further west than Houston (Reliant Stadium).
Nacodoches, Texas
dibolil
One halfway point between Edimburgo, TX and Houston, Texas is Lamar, TX.
The halfway point between Houston, Texas and Charlotte, North Carolina falls in Atmore, Alabama.
Austin, Brenham
Tampa, Florida which is the major city located on Tampa Bay is 981 miles from Houston, Texas and Austin, Texas is only 162 miles from Houston, Texas. That is road miles of course, and the distance in a direct line by air or using a sea route would be considerably shorter, but not enough to make it closer.
Luzena, Arizona, is the halfway point from Houston, Texas, to Sacramento, California. It signals 50% completion of a driving distance or 1,932 miles or 3,109 kilometers.
I believe that would be Centerville, Texas.
Greeneville, TN
You might want to specify a destination; Tampa to Houston is about a thousand miles; Tampa to El Paso is about 1700.