Cass County's estimated 2026 population is 12,396 with a growth rate of -0.54% in the past year according to the most recent United States census data. Cass County is the 81st largest county in Illinois. The 2010 population was 13,632 and has seen a growth of -9.07% since that time.
Data after 2023 is projected based on recent change
Overall: 38.3 years
Female: 38.5 years
Male: 38.2 years
There are 9,665 adults, (2,307 of whom are seniors) in Cass County.
Female: 6,554 (51.3%)
Male: 6,230 (48.7%)
The racial composition of Cass County includes 74.8% White, 9.36% other race, 3.97% Black or African American, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,562 | 74.8% |
| Two or more races | 1,203 | 9.41% |
| Other race | 1,196 | 9.36% |
| Black or African American | 508 | 3.97% |
| Native American | 128 | 1% |
| Asian | 117 | 0.92% |
| Native Hawaiian or Pacific Islander | 70 | 0.55% |
Cass County's average per capita income is $46,899. Household income levels show a median of $68,125. The poverty rate stands at 11.09%.
Name | Median | Mean |
|---|---|---|
| Married Families | $88,042 | - |
| Families | $79,133 | $94,109 |
| Households | $68,125 | $81,028 |
| Non Families | $37,050 | $48,711 |
Average Income
Median Household Income
Poverty Rate
