Ottawa County, Kansas Demographics 2026
Ottawa County, Kansas has a population of 5,819, the 59th most populous county in Kansas. The median household income is $74,018 and the median home value is $166,000. The poverty rate is 10.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Ottawa County Quick Facts
How Ottawa County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 5,782 | 5,819 | +0.6% |
| Median household income | $76,755 | $74,018 | -3.6% |
| Median home value | $164,100 | $166,000 | +1.2% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Ottawa County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Minneapolis | 2,043 | $57,702 | 10.2% | $143,800 |
| Bennington | 651 | $74,375 | 17.2% | $156,400 |
| Delphos | 320 | $58,824 | 22.5% | $63,200 |
| Tescott | 235 | $68,250 | 18.7% | $110,100 |
| Niles | 84 | N/A | 0.0% | $202,800 |
| Culver | 83 | N/A | 7.2% | N/A |
| Ada | 67 | $105,208 | 9.0% | $127,100 |
| Wells | 10 | N/A | 40.0% | N/A |
Explore Kansas Rankings
Population Overview
Ottawa County is located in Kansas with a total population of 5,819. It is the 59th most populous county out of 105 in Kansas. The county encompasses 8 Census-designated places.
Age Demographics
The median age in Ottawa County is 42.4 years. This is 13% higher than the state median of 37.4 years.
Economy, Income & Housing
The median household income in Ottawa County is $74,018. This is about the same as the state median of $74,275. It is also 8% lower than the national median of $80,734. The poverty rate stands at 10.4%. This is 8% lower than the state poverty rate of 11.3%. The unemployment rate is 2.9%. This is 26% lower than the state rate of 3.9%. The median home value is $166,000. Housing costs are 24% lower than the state median of $217,200. With a home-value-to-income ratio of just 2.2x, Ottawa County is one of the most affordable housing markets in the area. 77.2% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 67.2%.
Race & Ethnicity
Ottawa County has a predominantly White (non-Hispanic) population, comprising 92.9% of all residents. Hispanic or Latino residents account for 3.3%. The Black or African American population (0.4%) is well below the state average of 5.1%. The Hispanic or Latino population (3.3%) is well below the state average of 13.6%. The Asian population (0.1%) is well below the state average of 2.9%.
Education
27.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 35.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.9%.
Data Sources & Methodology
All figures for Ottawa County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Kansas and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Ottawa County, Kansas?
Ottawa County has a population of 5,819, making it the 59th most populous county in Kansas.
What is the median income in Ottawa County?
The median household income in Ottawa County is $74,018 with a poverty rate of 10.4%.
How many cities are in Ottawa County, Kansas?
Ottawa County contains 8 Census-designated places.