Solvay is a city located in New York. With a 2020 population of 6,134, it is the 143rd largest city in New York and the 4243rd largest city in the United States. Solvay is currently declining at a rate of -1.06% annually and its population has decreased by -6.83% since the most recent census, which recorded a population of 6,584 in 2010. Solvay reached it's highest population of 8,732 in 1960. Spanning over 2 miles, Solvay has a population density of 3,710 people per square mile.
The average household income in Solvay is $57,281 with a poverty rate of 15.83%. The median rental costs in recent years comes to $781 per month, and the median house value is $109,900. The median age in Solvay is 37.4 years, 34.3 years for males, and 38.8 years for females. For every 100 females there are 89.5 males.