Seneca is located in Newton County, Missouri. Seneca has a 2025 population of 2,997 . Seneca is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Seneca is $60,636 with a poverty rate of 26.67%. The median age in Seneca is 33.1 years: 31.3 years for males, and 33.7 years for females. For every 100 females there are 106.1 males.
Data after 2023 is projected based on recent change
The racial composition of Seneca includes 79.88% White, 4.27% Native Hawaiian or Pacific Islander, 3.74% other race, and smaller percentages for Native American, Asian and multiracial populations.
White (79.88%)
Two or more races (9.48%)
Native Hawaiian or Pacific Islander (4.27%)
Other race (3.74%)
Native American (2.37%)
Asian (0.27%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,394 | 79.88% |
| Two or more races | 284 | 9.48% |
| Native Hawaiian or Pacific Islander | 128 | 4.27% |
| Other race | 112 | 3.74% |
| Native American | 71 | 2.37% |
| Asian | 8 | 0.27% |
Married
Widowed
Divorced
Separated
Never Married
Seneca's average per capita income is $36,354. Household income levels show a median of $51,974. The poverty rate stands at 26.67%.
Name | Median | Mean |
|---|---|---|
| Married Families | $66,063 | - |
| Families | $60,288 | $69,897 |
| Households | $51,974 | $60,636 |
| Non Families | - | $28,723 |
Average Income
Median Household Income
Poverty Rate