History
A post office called Cortland has been in operation since 1892. The town was named after Cortland, New York.Geography
Cortland is located at (41.924857, -88.693093). According to the 2010 census, Cortland has a total area of , of which (or 99.78%) is land and (or 0.22%) is water. The town is located immediately east of the city of DeKalb and just south of the city of Sycamore.Demographics
As of the 2020 census there were 4,398 people, 1,419 households, and 939 families residing in the town. The population density was . There were 1,561 housing units at an average density of . The racial makeup of the town was 73.72% White, 8.19% African American, 0.48% Native American, 1.39% Asian, 0.05% Pacific Islander, 5.82% from other races, and 10.37% from two or more races. Hispanic or Latino of any race were 17.03% of the population. There were 1,419 households, out of which 64.69% had children under the age of 18 living with them, 51.30% were married couples living together, 6.77% had a female householder with no husband present, and 33.83% were non-families. 21.35% of all households were made up of individuals, and 5.85% had someone living alone who was 65 years of age or older. The average household size was 3.48 and the average family size was 3.00. The town's age distribution consisted of 26.0% under the age of 18, 9.6% from 18 to 24, 40.9% from 25 to 44, 15.7% from 45 to 64, and 7.9% who were 65 years of age or older. The median age was 30.2 years. For every 100 females, there were 120.7 males. For every 100 females age 18 and over, there were 123.5 males. The median income for a household in the town was $74,821, and the median income for a family was $98,984. Males had a median income of $51,393 versus $26,688 for females. The per capita income for the town was $32,578. About 0.6% of families and 4.5% of the population were below the poverty line, including 0.5% of those under age 18 and 3.3% of those age 65 or over.Notable person
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