Nassau, NY

ZIP code 12123 is located in Rensselaer County, New York. It is home to the city of Poestenkill, a quaint town surrounded by picturesque natural landscapes and charming historic buildings. The area is known for its scenic beauty, with popular landmarks including the Poestenkill Gorge Park, featuring waterfalls and hiking trails, as well as the historic Knickerbocker Mansion, offering a glimpse into the region's rich history.