Olean is a city located in New York. With a 2020 population of 13,395, it is the 65th largest city in New York and the 2497th largest city in the United States. Olean is currently declining at a rate of -0.75% annually and its population has decreased by -7.31% since the most recent census, which recorded a population of 14,452 in 2010. Olean reached it's highest population of 22,884 in 1950. Spanning over 6 miles, Olean has a population density of 2,271 people per square mile.
The average household income in Olean is $56,499 with a poverty rate of 20.11%. The median rental costs in recent years comes to $628 per month, and the median house value is $72,900. The median age in Olean is 41.8 years, 40.5 years for males, and 43.6 years for females. For every 100 females there are 96.0 males.