Seneca city, Kansas Demographics & Population 2026
As of 2026, Seneca city, Kansas has a total population of 2,139, the 115th largest city in Kansas, with a median household income of $70,221, which is 3% lower than the state average. The poverty rate is 8.5%.
Key Takeaways
- Near full employment with an unemployment rate of just 0.5%.
Seneca city Quick Facts
How Seneca city Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
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: 44 | National average: 60
Education
Educational Attainment (Adults 25+)
Seneca city Rankings in Kansas
Explore Kansas Rankings
Other Cities in Nemaha County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Sabetha city | 2,326 | $67,794 | 11.2% | $146,000 |
Cities Similar to Seneca city
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Ellis city | 2,145 | $70,274 | $156,900 | 28.7% | 17.1% |
| Herington city | 2,105 | $68,214 | $79,000 | 21.5% | 6.9% |
| Oakley city | 2,049 | $69,778 | $118,700 | 25.6% | 13.9% |
| Minneapolis city | 2,101 | $65,694 | $133,100 | 21.9% | 12.2% |
| Fredonia city | 2,113 | $61,250 | $87,700 | 20.0% | 19.0% |
Population Overview
Seneca city is a small community located in Kansas, within Nemaha County. The total population is 2,139. It ranks as the 115th most populous out of 726 cities and towns in Kansas.
Age Demographics
The median age in Seneca city is 42.9 years. This is 15% higher than the state median of 37.2 years. 15.6% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Seneca city is $70,221. This is 3% lower than the state median of $72,639. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 8.5%. This is 26% lower than the state poverty rate of 11.5%. The unemployment rate is 0.5%. This is 88% lower than the state rate of 3.9%. The median home value is $217,000. Housing costs are 7% higher than the state median of $203,400. The home-value-to-income ratio is 3.1x. 78.3% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 66.9%.
Race & Ethnicity
Seneca city has a predominantly White (non-Hispanic) population, comprising 93.3% of all residents. Hispanic or Latino residents account for 4.5%. The Black or African American population (0.1%) is well below the state average of 5.3%. The Hispanic or Latino population (4.5%) is well below the state average of 13.3%.
Education
24.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% lower than the state rate of 35.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.3%.
Data Sources & Methodology
All demographic data for Seneca city, Kansas is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Kansas state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 726 Census-designated places in Kansas. For official data, visit data.census.gov.
Free data download: Get all Kansas city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Seneca city, Kansas?
Seneca city, Kansas has a population of 2,139 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Seneca city, KS?
The median household income in Seneca city is $70,221, which is 11% lower the national median of $78,538.
What is the poverty rate in Seneca city, KS?
The poverty rate in Seneca city is 8.5%. This means approximately 173 residents live below the federal poverty line.
What is the racial makeup of Seneca city, Kansas?
Seneca city's population is 93.3% White, 0.1% Black, 4.5% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Seneca city, KS?
The median home value in Seneca city is $217,000. The home-value-to-income ratio is 3.1x.
How educated is Seneca city, Kansas?
24.5% of adults (25+) in Seneca city hold a bachelor's degree or higher, and 7.8% hold a graduate or professional degree.