Ottawa County's estimated 2026 population is 39,233 with a growth rate of -0.63% in the past year according to the most recent United States census data. Ottawa County is the 62nd largest county in Ohio. The 2010 population was 41,359 and has seen a growth of -5.14% since that time.
Data after 2023 is projected based on recent change
Overall: 50.6 years
Female: 51.1 years
Male: 50.2 years
There are 32,979 adults, (11,070 of whom are seniors) in Ottawa County.
Female: 20,016 (50%)
Male: 19,978 (50%)
The racial composition of Ottawa County includes 92.02% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 36,803 | 92.02% |
| Two or more races | 1,779 | 4.45% |
| Other race | 734 | 1.84% |
| Black or African American | 434 | 1.09% |
| Asian | 168 | 0.42% |
| Native American | 66 | 0.17% |
| Native Hawaiian or Pacific Islander | 10 | 0.03% |
Ottawa County's average per capita income is $53,345. Household income levels show a median of $76,101. The poverty rate stands at 8.43%.
Name | Median | Mean |
|---|---|---|
| Married Families | $108,285 | - |
| Families | $97,364 | $127,603 |
| Households | $76,101 | $104,812 |
| Non Families | $46,250 | $63,704 |
Average Income
Median Household Income
Poverty Rate