Cumberland County's estimated 2026 population is 10,138 with a growth rate of -0.69% 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 -8.28% since that time.
Data after 2023 is projected based on recent change
Overall: 43.1 years
Female: 43 years
Male: 43.2 years
There are 8,017 adults, (2,173 of whom are seniors) in Cumberland County.
Female: 5,180 (50.1%)
Male: 5,154 (49.9%)
The racial composition of Cumberland County includes 95% White, and smaller percentages for Black or African American, other race, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,817 | 95% |
| Two or more races | 488 | 4.72% |
| Black or African American | 18 | 0.17% |
| Other race | 7 | 0.07% |
| Asian | 4 | 0.04% |
Cumberland County's average per capita income is $45,559. Household income levels show a median of $73,327. The poverty rate stands at 9.09%.
Name | Median | Mean |
|---|---|---|
| Married Families | $103,995 | - |
| Families | $95,833 | $106,841 |
| Households | $73,327 | $87,318 |
| Non Families | $36,294 | $45,519 |
Average Income
Median Household Income
Poverty Rate
