Cumberland County's estimated 2026 population is 10,371 with a growth rate of 0.32% in the past year according to the most recent United States census data. Cumberland County is the 87th largest county in Illinois. The 2010 population was 11,053 and has seen a growth of -6.17% since that time.
Data after 2023 is projected based on recent change
The racial composition of Cumberland County includes 95.97% White, and smaller percentages for Black or African American, Asian, other race and multiracial populations.
White (95.97%)
Two or more races (3.69%)
Black or African American (0.14%)
Asian (0.1%)
Other race (0.1%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,960 | 95.97% |
| Two or more races | 383 | 3.69% |
| Black or African American | 15 | 0.14% |
| Asian | 10 | 0.1% |
| Other race | 10 | 0.1% |
Married
Widowed
Divorced
Separated
Never Married
Cumberland County's average per capita income is $42,273. Household income levels show a median of $69,826. The poverty rate stands at 9.92%.
Name | Median | Mean |
|---|---|---|
| Married Families | $104,083 | - |
| Families | $93,996 | $104,675 |
| Households | $69,826 | $88,805 |
| Non Families | $36,483 | $53,637 |
Average Income
Median Household Income
Poverty Rate
