Portville is a city located in New York. Portville has a 2020 population of 3,515. Portville is currently declining at a rate of -0.51% annually and its population has decreased by -5.92% since the most recent census, which recorded a population of 3,736 in 2010. Portville reached it's highest population of 3,736 in 2010.
The average household income in Portville is $68,551 with a poverty rate of 8.11%. The median rental costs in recent years comes to $556 per month, and the median house value is $89,400. The median age in Portville is 44.2 years, 42 years for males, and 46.7 years for females. For every 100 females there are 98.6 males.