Ava is a town in Oneida County, New York, United States. The population was 678 at the 2010 census..
According to the United States Census Bureau, the town has a total area of 37.7 square miles (98 km), of which, 37.7 square miles (98 km) of it is land and 0.04 square miles (0.10 km) of it (0.08%) is water.
Ava is located within the Tug Hill Plateau region of New York, and the north town line is the border of Lewis County, New York. The Mohawk River, and Black River run through Ava, and Fish Creek forms Ava’s western border with the Town of Annsville.
As of the census of 2000, there were 725 people, 257 households, and 193 families residing in the town. The population density was 19.2 people per square mile (7.4/km²). There were 285 housing units at an average density of 7.6 per square mile (2.9/km²). The racial makeup of the town was 98.21% White, 0.97% African American, 0.14% Native American, 0.14% from other races, and 0.55% from two or more races. Hispanic or Latino of any race were 0.83% of the population.
There were 257 households out of which 38.5% had children under the age of 18 living with them, 59.9% were married couples living together, 8.6% had a female householder with no husband present, and 24.9% were non-families. 21.0% of all households were made up of individuals and 8.2% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 3.25.
In the town, the population was spread out with 30.3% under the age of 18, 4.8% from 18 to 24, 31.4% from 25 to 44, 21.5% from 45 to 64, and 11.9% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 107.1 males. For every 100 females age 18 and over, there were 106.1 males.
The median income for a household in the town was $31,750, and the median income for a family was $40,000. Males had a median income of $28,750 versus $27,500 for females. The per capita income for the town was $13,406. About 14.9% of families and 20.1% of the population were below the poverty line, including 28.8% of those under age 18 and 14.9% of those age 65 or over.