Ottawa County's estimated 2026 population is 5,680 with a growth rate of -1.11% in the past year according to the most recent United States census data. Ottawa County is the 59th largest county in Kansas. The 2010 population was 6,097 and has seen a growth of -6.84% since that time.
Data after 2023 is projected based on recent change
Overall: 42.4 years
Female: 44.1 years
Male: 41.5 years
There are 4,450 adults, (1,221 of whom are seniors) in Ottawa County.
Female: 2,792 (48%)
Male: 3,027 (52%)
The racial composition of Ottawa County includes 93.52% White, and smaller percentages for other race, Native American, Black or African American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,442 | 93.52% |
| Two or more races | 251 | 4.31% |
| Other race | 70 | 1.2% |
| Native American | 30 | 0.52% |
| Black or African American | 23 | 0.4% |
| Asian | 3 | 0.05% |
Ottawa County's average per capita income is $47,880. Household income levels show a median of $74,018. The poverty rate stands at 10.41%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,797 | - |
| Families | $91,848 | $102,429 |
| Households | $74,018 | $88,878 |
| Non Families | $36,833 | $48,415 |
Average Income
Median Household Income
Poverty Rate