In 2021, Cumberland County, IL had a population of 10.5k people with a median age of 42.5 and a median household income of $66,530. Between 2020 and 2021 the population of Cumberland County, IL declined from 10,787 to 10,528, a −2.4% decrease and its median household income grew from $59,271 to $66,530, a 12.2% increase.
The 5 largest ethnic groups in Cumberland County, IL are White (Non-Hispanic) (96.2%), Two+ (Non-Hispanic) (2.28%), Other (Hispanic) (0.836%), Asian (Non-Hispanic) (0.209%), and White (Hispanic) (0.152%).
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.
99.4% of the residents in Cumberland County, IL are U.S. citizens.
In 2021, the median property value in Cumberland County, IL was $107,900, and the homeownership rate was 80.7%.
Most people in Cumberland County, IL drove alone to work, and the average commute time was 22.8 minutes. The average car ownership in Cumberland County, IL was 2 cars per household.