Cass County's 2026 population is estimated at 117,774, reflecting a 1.65% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Cass County is the 10th largest county in Missouri. The 2010 population was 99,756 and has grown 18.06% since 2010.
Overall: 40.4 years
Female: 41.5 years
Male: 39.2 years
There are 84,785 adults, (19,908 of whom are seniors) in Cass County.
Female: 56,535 (51%)
Male: 54,238 (49%)
The racial composition of Cass County includes 84.48% White, 4.63% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 93,583 | 84.48% |
| Two or more races | 8,291 | 7.48% |
| Black or African American | 5,124 | 4.63% |
| Other race | 2,514 | 2.27% |
| Asian | 842 | 0.76% |
| Native American | 308 | 0.28% |
| Native Hawaiian or Pacific Islander | 111 | 0.1% |
Cass County 's average per capita income is $55,068. Household income levels show a median of $87,535. The poverty rate stands at 6.24%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $121,797 | $139,500 |
| Families | $105,069 | $123,767 |
| Households | $87,535 | $108,544 |
| Non Families | $46,646 | $62,882 |
Average Income
Median Household Income
Poverty Rate