Oneonta is a city located in Blount County Alabama. It is also the county seat of Blount County. With a 2020 population of 6,545, it is the 87th largest city in Alabama and the 4104th largest city in the United States . Oneonta is currently declining at a rate of -0.24% annually and its population has decreased by -0.34% since the most recent census, which recorded a population of 6,567 in 2010. Oneonta reached it's highest population of 6,618 in 2011. Spanning over 16 miles, Oneonta has a population density of 416 people per square mile.
The average household income in Oneonta is $60,971 with a poverty rate of 11.79%. The median rental costs in recent years comes to $666 per month, and the median house value is $156,300. The median age in Oneonta is 40.6 years, 39.7 years for males, and 43.1 years for females.