Seneca

County:: Newton County
County Seat:: No
Area (mi²):: 2.559
State:: Missouri

Seneca is a city located in Newton County, Missouri. Seneca has a 2025 population of 2,330. Seneca is currently growing at a rate of 0.82% annually and its population has increased by 4.16% since the most recent census, which recorded a population of 2,237 in 2020.

The average household income in Seneca is $59,083 with a poverty rate of 19.08%.The median age in Seneca is 35.7 years: 31.6 years for males, and 40.5 years for females.

Demographics

The racial composition of Seneca includes 74.87% White, 5.78% Native Hawaiian or Pacific Islander, 5.78% other race, 3.66% Native American, and smaller percentages for Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,451	74.87%
Two or more races	184	9.49%
Native Hawaiian or Pacific Islander	112	5.78%
Other race	112	5.78%
Native American	71	3.66%
Asian	8	0.41%

Seneca Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Seneca's average per capita income is $39,375. Household income levels show a median of $49,821. The poverty rate stands at 19.08%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$60,660	-
Families	$52,500	$63,988
Households	$49,821	$59,083
Non Families	$21,375	$30,609

$39,375

Average Income

$49,821

Median Household Income

19.08%

Poverty Rate