Cass County's 2026 population is estimated at 12,810, reflecting a -0.83% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Cass County is the 58th largest county in Iowa. The 2010 population was 13,927 and has grown -8.02% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.5 years
Female: 44.3 years
Male: 43.1 years
There are 10,061 adults, (3,061 of whom are seniors) in Cass County.
Female: 6,639 (50.7%)
Male: 6,457 (49.3%)
The racial composition of Cass County includes 94.56% White, and smaller percentages for Two or more races, other race, Black or African American, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 12,384 | 94.56% |
| Two or more races | 308 | 2.35% |
| Other race | 121 | 0.92% |
| Black or African American | 118 | 0.9% |
| Asian | 68 | 0.52% |
| Native Hawaiian or Pacific Islander | 54 | 0.41% |
| Native American | 43 | 0.33% |
Cass County 's average per capita income is $44,455. Household income levels show a median of $63,013. The poverty rate stands at 14.25%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $103,636 | - |
| Families | $88,641 | $106,741 |
| Households | $63,013 | $84,546 |
| Non Families | $32,007 | $49,863 |
Average Income
Median Household Income
Poverty Rate
