Slope County's estimated 2026 population is 622 with a growth rate of -2.96% in the past year according to the most recent United States census data. Slope County is the 53rd largest county in North Dakota. The 2010 population was 732 and has seen a growth of -15.03% since that time.
Data after 2023 is projected based on recent change
The racial composition of Slope County includes 93.84% White, and smaller percentages for Native American, other race and multiracial populations.
White (93.84%)
Two or more races (5.03%)
Native American (0.63%)
Other race (0.5%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 746 | 93.84% |
| Two or more races | 40 | 5.03% |
| Native American | 5 | 0.63% |
| Other race | 4 | 0.5% |
Married
Widowed
Divorced
Separated
Never Married
Slope County's average per capita income is $43,542. Household income levels show a median of $62,500. The poverty rate stands at 6.42%.
Name | Median | Mean |
|---|---|---|
| Married Families | $96,719 | - |
| Families | $79,250 | $108,038 |
| Households | $62,500 | $88,575 |
| Non Families | $44,375 | $48,305 |
Average Income
Median Household Income
Poverty Rate