Ontario is a town in the northwest corner of Wayne County, New York, United States. The population was 9,778 at the 2000 census, and 10,136 at the 2010 census. The town is named after the Great Lake on its northern border.
According to the United States Census Bureau, the town has a total area of 32.3 square miles (84 km), of which, 32.2 square miles (83 km) of it is land and 0.1 square miles (0.26 km) of it (0.37%) is water.
The north town boundary is Lake Ontario, and the west town line is the border of Monroe County. The town is east of the City of Rochester.
New York State Route 104 is an east-west highway that intersects north-south highway New York State Route 350 at Ontario Center.
As of the census of 2010, there were 10,136 people, 3,960 households, and 2,898 families residing in the town. The population density was 303.5 people per square mile (117.2/km²). The racial makeup of the town was 96.7% White, 1.2% Black or African American, 0.2% Native American, 0.5% Asian, 0.0% Pacific Islander, 0.4% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.6% of the population.
There were 3,960 households out of which 32.2% had children under the age of 18 living with them, 59.2% were married couples living together, 9.4% had a female householder with no husband present, and 26.8% were non-families. 20.8% 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 2.56 and the average family size was 2.96.
In the town, the population was spread out with 26.0% under the age of 20, 4.7% from 20 to 24, 24.0% from 25 to 44, 32.5% from 45 to 64, and 12.5% who were 65 years of age or older. The median age was 42.1 years. For every 100 females, there were 98.1 males. For every 100 females age 18 and over, there were 96.8 males.
The median income for a household in the town was $65,472, and the median income for a family was $74,589. Males had a median income of $53,917 versus $34,732 for females. The per capita income for the town was $30,559. About 2.3% of families and 5.2% of the population were below the poverty line, including 8.3% of those under age 18 and 2.7% of those age 65 or over.
There were 4,145 housing units at an average density of 128.3 per square mile (49.5/km²). 4.5% of housing units were vacant.
There were 3,960 occupied housing units in the town. 3,329 were owner-occupied units (84.1%), while 631 were renter-occupied (15.9%). The homeowner vacancy rate was 1.3% of total units. The rental unit vacancy rate was 7.3%.
Ontario New York neighborhoods include: AC Auto Plex, Boston Rd, Eastwood Estates, Hennessey Whitney, Lake Rd / Shoreline Burrows, Ontario, Paddy Lane, Ridge Rd – Lanson Rd, Stonehedge Dr