Osage County's estimated 2026 population is 13,476 with a growth rate of -0.01% in the past year according to the most recent United States census data. Osage County is the 73rd largest county in Missouri. The 2010 population was 13,907 and has seen a growth of -3.1% since that time.
Data after 2023 is projected based on recent change
The racial composition of Osage County includes 97.79% White, and smaller percentages for Two or more races, Native American, Black or African American, other race, Asian and multiracial populations.
White (97.79%)
Two or more races (1.64%)
Native American (0.35%)
Black or African American (0.16%)
Other race (0.06%)
Asian (0.01%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 13,083 | 97.79% |
| Two or more races | 219 | 1.64% |
| Native American | 47 | 0.35% |
| Black or African American | 21 | 0.16% |
| Other race | 8 | 0.06% |
| Asian | 1 | 0.01% |
Married
Widowed
Divorced
Separated
Never Married
Osage County's average per capita income is $48,339. Household income levels show a median of $75,355. The poverty rate stands at 10.09%.
Name | Median | Mean |
|---|---|---|
| Married Families | $105,552 | - |
| Families | $96,100 | $131,161 |
| Households | $75,355 | $104,002 |
| Non Families | $30,026 | $42,179 |
Average Income
Median Household Income
Poverty Rate
