Sheridan County's estimated 2026 population is 3,364 with a growth rate of -1.23% in the past year according to the most recent United States census data. Sheridan County is the 41st largest county in Montana. The 2010 population was 3,368 and has seen a growth of -0.12% since that time.
Data after 2023 is projected based on recent change
The racial composition of Sheridan County includes 92.19% White, and smaller percentages for Native American, other race, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White (92.19%)
Two or more races (4.84%)
Native American (1.66%)
Other race (0.54%)
Asian (0.44%)
Native Hawaiian or Pacific Islander (0.33%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,390 | 92.19% |
| Two or more races | 178 | 4.84% |
| Native American | 61 | 1.66% |
| Other race | 20 | 0.54% |
| Asian | 16 | 0.44% |
| Native Hawaiian or Pacific Islander | 12 | 0.33% |
Married
Widowed
Divorced
Separated
Never Married
Sheridan County's average per capita income is $42,337. Household income levels show a median of $63,654. The poverty rate stands at 10.01%.
Name | Median | Mean |
|---|---|---|
| Married Families | $97,870 | - |
| Families | $91,154 | $124,576 |
| Households | $63,654 | $94,455 |
| Non Families | $35,054 | $51,183 |
Average Income
Median Household Income
Poverty Rate