Portville is a city located in Cattaraugus County New York. Portville has a 2020 population of 3,450. Portville is currently declining at a rate of -0.98% annually and its population has decreased by -7.48% since the most recent census, which recorded a population of 3,729 in 2010. Portville reached it's highest population of 3,729 in 2010.
The average household income in Portville is $64,308 with a poverty rate of 9.43%. The median rental costs in recent years comes to $585 per month, and the median house value is $89,900. The median age in Portville is 45.5 years, 45.5 years for males, and 45.7 years for females.