Elma is a town in Erie County, New York, United States. The population was 11,317 at the 2010 census. The town is named after a type of tree.
According to the United States Census Bureau, the town has a total area of 34.53 square miles (89.43 km), of which 34.52 square miles (89.40 km) is land and 0.01 square miles (0.03 km), or 0.03%, is water.
New York State Route 78 makes the west town line. The East Aurora Expressway (New York State Route 400) crosses the town.
As of the census of 2000, there were 11,304 people, 4,186 households, and 3,294 families residing in the town. The population density was 327.7 people per square mile (126.5/km²). There were 4,296 housing units at an average density of 124.5 per square mile (48.1/km²). The racial makeup of the town was 99.09% White, 0.05% African American, 0.05% Native American, 0.27% Asian, 0.01% Pacific Islander, 0.07% from other races, and 0.46% from two or more races. Hispanic or Latino of any race were 0.60% of the population.
There were 4,186 households, out of which 32.6% had children under the age of 18 living with them, 70.0% were married couples living together, 6.0% had a female householder with no husband present, and 21.3% were non-families. 17.9% of all households were made up of individuals and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.08.
In the town, the population was spread out with 24.5% under the age of 18, 5.5% from 18 to 24, 26.1% from 25 to 44, 27.9% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 97.8 males. For every 100 females age 18 and over, there were 95.4 males.
The town’s median household income was $56,334, and the median family income was $63,922. Males had a median income of $42,679 versus $28,826 for females. The town’s per capita income was $25,960. About 2.3% of families and 3.4% of the population were below the poverty line, including 3.4% of those under age 18 and 6.3% of those age 65 or over.