Oakland is a city in Coles County, Illinois, United States. The population was 880 at the 2010 census.
Oakland is located at 39°39′24″N 88°01′31″W / 39.656788°N 88.025401°W / 39.656788; -88.025401.
According to the 2010 census, Oakland has a total area of 0.873 square miles (2.26 km), of which 0.83 square miles (2.15 km) (or 95.07%) is land and 0.043 square miles (0.11 km) (or 4.93%) is water.
As of the census of 2000, there were 996 people, 416 households, and 294 families residing in the city. The population density was 1,215.8 people per square mile (469.0/km²). There were 437 housing units at an average density of 533.4 per square mile (205.8/km²). The racial makeup of the city was 99.10% White, 0.20% African American, 0.10% Native American, and 0.60% from two or more races. Hispanic or Latino of any race were 0.90% of the population.
There were 416 households out of which 31.7% had children under the age of 18 living with them, 55.0% were married couples living together, 12.5% had a female householder with no husband present, and 29.1% were non-families. 26.2% of all households were made up of individuals and 14.9% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.86.
In the city, the population was spread out with 26.1% under the age of 18, 7.5% from 18 to 24, 24.7% from 25 to 44, 24.8% from 45 to 64, and 16.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 94.9 males. For every 100 females age 18 and over, there were 84.0 males.
The median income for a household in the city was $34,038, and the median income for a family was $38,167. Males had a median income of $29,342 versus $20,577 for females. The per capita income for the city was $15,964. About 8.8% of families and 10.8% of the population were below the poverty line, including 20.2% of those under age 18 and 7.6% of those age 65 or over.