Hoosick Falls is a village in Rensselaer County, New York, United States. USA. The population was 3,436 at the 2000 census. During its peak around 1900, the village had a population of about 7,000. The Capital District Regional Planning Commission projects a further decline in population through 2010 and beyond. Hoosick Falls apartments for rent comparison page shows most up to date rent information on Hoosick Falls apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.