Earlville is a city in LaSalle County, Illinois, United States. The population was 1,613 at the 2020 census, down from 1,701 at the 2010 census. The city is part of the Ottawa, IL Micropolitan Statistical Area. History The Earlville Post Office has been in operation since 1844. The city was named after Earlville, New York, the former hometown of an early settler. Geography Earlville is located at . According to the 2010 census, Earlville has a total area of , all land. Demographics As of the 2020 census, there were 1,613 people, 886 households, and 542 families residing in the city. The population density was . There were 743 housing units at an average density of . The racial makeup of the city was 90.8% White, 0.4% African American, 0.3% Native American, 0.3% Asian, 3.3% from other races, and 4.9% from two or more races. Hispanic or Latino of any race were 8.2% of the population. There were 886 households, out of which 23.6% had children under the age of 18 living with them, 49.2% were married couples living together, 10.4% had a female householder with no husband present, and 38.8% were non-families. 32.8% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.94. In the city, the population was spread out, with 23.2% under the age of 18, 13.4% from 18 to 24, 23.5% from 25 to 44, 24.3% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 35.3 years. For every 100 females, there were 107.6 males. For every 100 females age 18 and over, there were 100.2 males. The median income for a household in the city was $52,768, and the median income for a family was $70,603. Males had a median income of $40,804 versus $19,375 for females. The per capita income for the city was $23,334. About 5.5% of families and 11.5% of the population were below the poverty line of which 9.0% were under the age of 18 and 7.2% were aged 65 or over. Earlville has a modern library, a K-12 school system, a bank, an ambulance and fire station, a weekly newspaper, a drive-in movie theater, and a number of local businesses. The area surrounding Earlville is strongly