Cass County's estimated 2026 population is 12,810 with a growth rate of -0.83% in the past year according to the most recent United States census data. Cass County is the 58th largest county in Iowa. The 2010 population was 13,927 and has seen a growth of -8.02% since that time.
Data after 2023 is projected based on recent change
The racial composition of Cass County includes 96.12% White, and smaller percentages for Two or more races, Black or African American, other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (96.12%)
Two or more races (1.73%)
Black or African American (0.85%)
Other race (0.5%)
Asian (0.34%)
Native Hawaiian or Pacific Islander (0.34%)
Native American (0.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 12,606 | 96.12% |
| Two or more races | 227 | 1.73% |
| Black or African American | 112 | 0.85% |
| Other race | 66 | 0.5% |
| Asian | 45 | 0.34% |
| Native Hawaiian or Pacific Islander | 44 | 0.34% |
| Native American | 15 | 0.11% |
Married
Widowed
Divorced
Separated
Never Married
Cass County's average per capita income is $42,531. Household income levels show a median of $61,657. The poverty rate stands at 17.44%.
Name | Median | Mean |
|---|---|---|
| Married Families | $99,257 | - |
| Families | $86,596 | $105,203 |
| Households | $61,657 | $82,873 |
| Non Families | $29,569 | $44,793 |
Average Income
Median Household Income
Poverty Rate
