 Per the 2010 United States Census, Callahan County had 13,544 people.Among non-Hispanics this includes 12,065 White (89.1%), 135 Black (1.0%), 56 Asian (0.4%), 61 Native American, 7 Pacific Islander, 10 from some other race, and 185 from two or more races.The Hispanic or Latino population included 1,025 people (7.6%).