Seventeenth-century Dutch fur traders were the first Europeans to settle in Rensselaer County. Most of Rensselaer County was then under the patroonship of the Van Rensselaer family, for which the County was named. Due to its strategic location at juncture of the Hudson and Mohawk Rivers, the area continued to develop as a major center of trade, playing an important role during the Revolutionary War. During that war, Rensselaer County saw action in the Battle of Bennington, which was fought in the county hamlet of Walloomsac.
Visit the U.S. Census Website for an array of demographic information.
U.S. Census information
Your link for the official Rensselaer County Website.