Albany is one of the 62 counties in the state of New York. It was created in 1683, making it one of the original 12 counties in the state. As of the 2010 census the population was 304,204, up from 294,565 in 2000. The county seat and largest city is Albany, the state capital.
The county has 533 square miles (1,380 km2) of area, of which 523 square miles (1,355 km2) is land. It is bordered by Schenectady County to the north, Saratoga County to the northeast, Rensselaer County to the east, Columbia County to the southeast corner, Greene County to the south and Schoharie County to the west.