elevation 2,160 ft (658 m)
Albany County is in the east central part of New York, extending southward and westward from the point where the Mohawk River joins the Hudson River. Its eastern boundary is the Hudson; a portion of its northern boundary is the Mohawk.
According to the U.S. Census Bureau, the county has a total area of 533 square miles (1,380 km2), of which 523 square miles (1,350 km2) is land and 10 square miles (26 km2) (1.83%) is water.
The terrain of the county ranges from flat near the Hudson and Mohawk Rivers to high and hilly to the southwest, where the Helderberg Escarpmentmarks the beginnings of the Catskill Mountains. The highest point is one of several summits near Henry Hill at approximately 2,160 feet (658 m) above sea level; the lowest point is sea level along the Hudson.