Seneca, Illinois Population 2022
Seneca is a city located in Illinois. With a 2020 population of 2,349, it is the 469th largest city in Illinois and the 10086th largest city in the United States. Seneca is currently declining at a rate of -0.09% annually and its population has decreased by -7.30% since the most recent census, which recorded a population of 2,534 in 2020. Spanning over 7 miles, Seneca has a population density of 362 people per square mile.
The average household income in Seneca is $85,150 with a poverty rate of 15.23%. The median rental costs in recent years comes to $794 per month, and the median house value is $169,200. The median age in Seneca is 32.6 years, 35.5 years for males, and 30.7 years for females.
Seneca Demographics
According to the most recent ACS, the racial composition of Senecawas:
- White: 96.80%
- Two or more races: 2.45%
- Black or African American: 0.67%
- Other race: 0.08%
- Native American: 0.00%
- Asian: 0.00%
- Native Hawaiian or Pacific Islander: 0.00%
Seneca Population Pyramid 2022
Seneca Renter vs Owner Occupied by Household Type
Seneca Household Types
83.8%
Rate of Home Ownership
2.85
Average Family Size
2.67
Average Household Size
Seneca Educational Attainment by Race
The highest rate of high school graduation is among black people with a rate of 100.00%.
The highest rate of bachelors degrees is among white people with a rate of 15.87%.
$41,326
Average Earnings
$64,803
Average Male
$24,500
Average Female
Seneca Language by Age
Seneca Language
99.44% of Seneca residents speak only English, while 0.56% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.56% of the population.
Seneca Poverty by Race
15.23%
Overall Poverty Rate
13.18%
Male Poverty Rate
17.19%
Female Poverty Rate
Poverty in Seneca
The race most likely to be in poverty in Seneca is White, with 14.79% below the poverty level.
The race least likely to be in poverty in Seneca is Hispanic, with 5.94% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 5.76%. Among those working part-time, it was 21.79%, and for those that did not work, the poverty rate was 9.53%.
Seneca Income by Household Type
Seneca Marital Status
Marriage Rates
47.8%
Overall Marriage Rate
50.3%
Male Marriage Rate
45.5%
Female Marriage Rate
Seneca Married by Age and Sex
Seneca Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.
Seneca Marital Status by Race
172
Number of Veterans
Male Veterans
Female Veterans
Seneca Veterans by Education
2.91%
Veteran Poverty Rate
17.44%
Veteran Disability Rate
69.2%
Labor Force Participation
64.5%
Employment Rate
6.7%
Unemployment Rate
Origin of Non-Citizens
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
85.87%
Born in Seneca
99.80%
Native Born
0.20%
Foreign Born
0.00%
Non Citizen
0.20%
Naturalized
Place of Birth
99.80% of Seneca residents were born in the United States, with 85.87% having been born in Illinois. 0.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.