Seneca is a city located in Nemaha County, Kansas. Seneca has a 2025 population of 2,143. It is also the county seat of Nemaha County. Seneca is currently growing at a rate of 0.05% annually and its population has increased by 0.14% since the most recent census, which recorded a population of 2,140 in 2020.
The average household income in Seneca is $88,715 with a poverty rate of 8.52%.The median age in Seneca is 42.9 years: 39 years for males, and 50.3 years for females.
Data after 2023 is projected based on recent change
The racial composition of Seneca includes 97.71% White, and smaller percentages for Two or more races, other race, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 2,090 | 97.71% |
Two or more races | 23 | 1.08% |
Other race | 22 | 1.03% |
Black or African American | 3 | 0.14% |
Native American | 1 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Seneca's average per capita income is $44,398. Household income levels show a median of $70,221. The poverty rate stands at 8.52%.
Name | Median | Mean |
---|---|---|
Married Families | $104,167 | - |
Families | $99,737 | $111,576 |
Households | $70,221 | $88,715 |
Non Families | $41,583 | $47,843 |
Average Income
Median Household Income
Poverty Rate