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, Black or African American and multiracial populations.

Population by Race

White

Two or more races

Native Hawaiian or Pacific Islander

Other race

Native American

Asian

Black or African American

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%
Black or African American	0	0%

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