Watervliet is a city located in New York. With a 2020 population of 9,876, it is the 90th largest city in New York and the 3122nd largest city in the United States. Watervliet is currently declining at a rate of -0.55% annually and its population has decreased by -3.69% since the most recent census, which recorded a population of 10,254 in 2010. Watervliet reached it's highest population of 16,114 in 1940. Spanning over 1 miles, Watervliet has a population density of 7,340 people per square mile.
The average household income in Watervliet is $55,194 with a poverty rate of 17.66%. The median rental costs in recent years comes to $867 per month, and the median house value is $145,300. The median age in Watervliet is 38.6 years, 37.2 years for males, and 40.4 years for females. For every 100 females there are 86.6 males.