Cass County's estimated 2026 population is 206,521 with a growth rate of 1.37% in the past year according to the most recent United States census data. Cass County is the largest county in North Dakota. The 2010 population was 150,321 and has seen a growth of 37.39% since that time.
Data after 2023 is projected based on recent change
The racial composition of Cass County includes 83.5% White, 6.47% Black or African American, 3.1% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (83.5%)
Black or African American (6.47%)
Two or more races (5.06%)
Asian (3.1%)
Other race (0.96%)
Native American (0.9%)
Native Hawaiian or Pacific Islander (0%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 158,063 | 83.5% |
| Black or African American | 12,256 | 6.47% |
| Two or more races | 9,569 | 5.06% |
| Asian | 5,874 | 3.1% |
| Other race | 1,818 | 0.96% |
| Native American | 1,702 | 0.9% |
| Native Hawaiian or Pacific Islander | 4 | 0% |
Married
Widowed
Divorced
Separated
Never Married
Cass County's average per capita income is $52,599. Household income levels show a median of $75,023. The poverty rate stands at 10.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $124,264 | $154,838 |
| Families | $109,357 | $137,731 |
| Households | $75,023 | $101,854 |
| Non Families | $45,334 | $58,282 |
Average Income
Median Household Income
Poverty Rate