Aurelius is a town in Cayuga County, New York, United States. The population was 2,792 at the 2010 census. The town was named after the Roman emperor Marcus Aurelius. It is at the western edge of the county and borders the city of Auburn.
According to the United States Census Bureau, the town of Aurelius has a total area of 32.0 square miles (82.9 km), of which 30.2 square miles (78.3 km) is land and 1.7 square miles (4.5 km), or 5.47%, is water.
The west town line is defined by Cayuga Lake, one of the larger Finger Lakes. The town is bordered to the east by the city of Auburn. To the north are the towns of Montezuma and Throop, and to the south are the towns of Springport and Fleming.
Conjoined US 20 and NY 5 is a major east-west highway. New York State Route 90 is a north-south highway along the shore of Cayuga Lake. New York State Route 326 passes across the southeast part of the town.
As of the census of 2000, there were 2,936 people, 1,124 households, and 816 families residing in the town. The population density was 97.0 people per square mile (37.4/km²). There were 1,281 housing units at an average density of 42.3 per square mile (16.3/km²). The racial makeup of the town was 98.60% White, 0.34% African American, 0.14% Native American, 0.03% Asian, 0.07% from other races, and 0.82% from two or more races. Hispanic or Latino of any race were 1.19% of the population.
There were 1,124 households out of which 31.6% had children under the age of 18 living with them, 59.8% were married couples living together, 8.5% had a female householder with no husband present, and 27.4% were non-families. 22.9% of all households were made up of individuals and 11.7% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.05.
In the town, the population was spread out with 25.6% under the age of 18, 6.2% from 18 to 24, 27.1% from 25 to 44, 24.4% from 45 to 64, and 16.7% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 98.2 males. For every 100 females age 18 and over, there were 98.0 males.
The median income for a household in the town was $41,202, and the median income for a family was $48,188. Males had a median income of $34,125 versus $22,895 for females. The per capita income for the town was $19,323. About 7.4% of families and 8.3% of the population were below the poverty line, including 10.0% of those under age 18 and 4.7% of those age 65 or over.