Cornwall is a city located in New York. Cornwall has a 2020 population of 12,453. Cornwall is currently growing at a rate of 0.06% annually but its population has decreased by -1.25% since the most recent census, which recorded a population of 12,610 in 2010. Cornwall reached it's highest population of 12,610 in 2010.
The average household income in Cornwall is $119,284 with a poverty rate of 3.79%. The median rental costs in recent years comes to $1,398 per month, and the median house value is $322,000. The median age in Cornwall is 42 years, 42.6 years for males, and 41.5 years for females. For every 100 females there are 86.2 males.