Alpine | Austin | Del Rio | El Paso | Midland | Pecos | San Antonio | Waco Waco Division Office 13 Counties 11,633 sq. miles Population = 641,545 Mark Frazier, City Chief United States Attorney's Office 800 Franklin Avenue Suite 280 Waco, Texas 76701 Phone: (254) 750-1580 Updated March 2, 2015