Saratoga County is a county located in the U.S. state of New York. As of the 2014 U.S. Census estimate, the county's population was 224,921, representing a 2.4% increase from the 2010 population of 219,607, one of the fastest growth rates in the northeastern United States. The county seat is Ballston Spa. Saratoga County is included in the Capital District, encompassing the Albany-Schenectady-Troy, New York Metropolitan Statistical Area.