Ottawa County, Ohio
Located in Ohio, Ottawa County has a population of 39,994 residents and a median age of 50.6 years, making it the #1,204 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.4%. The median home value is $219,900, and the median household income is $76,101, which is 1% above the national median.
Demographics
Ottawa County has a population of 39,994, making it the #1,204 most populous county in the US. The median age is 50.6 years, which is 30.1% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Ottawa County is $76,101, ranking #775 out of 3,222 counties — 1.3% above the national median. The poverty rate is 8.4% and unemployment stands at 3.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Ottawa County is $219,900 (-22.0% vs national). Renters pay a median of $930/mo and the homeownership rate is 83.6%.
Median Home Value Trend
Rankings →Household Type
Education
In Ottawa County, 29.5% of adults age 25+ hold a bachelor's degree or higher, which is 12.4% below the national average, ranking #802 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Ottawa County is 76.6 years. 16.2% of adults report poor or fair health and 6.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.4% of adults in Ottawa County smoke , 41.2% are obese , and 21.4% report excessive drinking. The drug overdose death rate is 32.4 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 22.0 per 100,000. Motor vehicle deaths occur at a rate of 14.1 per 100,000.
Suicide Rate Trend
Families & Children
12.0% of children in Ottawa County live in poverty . The teen birth rate is 12.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Ottawa County is 72.9%. The mean commute time is 26.2 min, which is 5.1% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Ottawa County voted Republican with a margin of 25.1%. The vote was 37% Dem / 62.1% Rep. Compared to 2020, the margin shifted 1.7 toward Republicans .
Vote Share Over Time
About Ottawa County, Ohio
Ottawa County, Ohio has a total population of 39,994, making it the 1,204th most populous county in the United States. The median age in Ottawa County is 50.6 years, which is 30.1% above the national median of 38.9 years.
The median household income in Ottawa County is $76,101, which ranks #775 of 3,222 counties nationwide. This is 1.3% above the national median of $75,149. The poverty rate is 8.4%, lower than the national rate of 12.6%. The unemployment rate stands at 3.1%.
The median home value in Ottawa County is $219,900, 22.0% below the national median. Renters in Ottawa County pay a median gross rent of $930 per month. The homeownership rate is 83.6%, compared to the national rate of 64.4%.
In Ottawa County, 29.5% of residents aged 25 and older hold a bachelor's degree or higher, 12.4% below the national average of 33.7%. Health insurance coverage stands at 96.1% of the population. The average commute time for workers is 26.2 min.
Ottawa County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 90.3% of the population, followed by Hispanic or Latino (5.3%) and Two or More Races (2.7%).
All data for Ottawa County, Ohio comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.