Median Household Income
$86,830 ± $20,382
Median Home Value
$227,500 ± $41,174
Median Gross Rent
$1,149 ± $99/mo
Per Capita Income
$41,006
Poverty Rate
22.2%
Unemployment Rate
4.0%
Homeownership Rate
81.3%
Bachelor's Degree or Higher
14.9%
Median Age
35.5
Average Commute
24 min
Households
907
Veterans
196
Population Over Time
Seneca shrank 6.8% from 2014 to 2024.
2014
2,629
2016
2,565
2018
2,596
2020
2,534
2022
2,565
2024
2,450
Population by Race & Ethnicity
White
88.9%
Hispanic or Latino
10.0%
Black or African American
0.9%
Asian
0.0%
Nearby Cities in Illinois
Source: U.S. Census Bureau, American Community Survey, ACS 2020-2024. Estimates carry a margin of error (shown as ±) inherent to ACS's sample-based methodology.