In 2023, Cumberland County, IL had a population of 10.4k people with a median age of 42.3 and a median household income of $69,826. Between 2022 and 2023 the population of Cumberland County, IL declined from 10,447 to 10,378, a −0.66% decrease and its median household income declined from $71,274 to $69,826, a −2.03% decrease.
The 5 largest ethnic groups in Cumberland County, IL are White (Non-Hispanic) (96%), Two+ (Non-Hispanic) (3.49%), Two+ (Hispanic) (0.202%), Black or African American (Non-Hispanic) (0.145%), and Asian (Non-Hispanic) (0.0964%).
None of the households in Cumberland County, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.8% of the residents in Cumberland County, IL are U.S. citizens.
Most people in Cumberland County, IL drove alone to work, and the average commute time was 24.1 minutes. The average car ownership in Cumberland County, IL was 2 cars per household.
Cumberland County, IL borders Clark County, IL, Coles County, IL, Effingham County, IL, Jasper County, IL, and Shelby County, IL.