United States › Illinois › Cass County COUNTY
Cass County Illinois · 12,463 residents (2025 est.) · 376 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
Cass County is home to 12,784 people in Illinois. Four-year degrees are less common here than nationally, at 21% of adults. The typical home is worth $97,100, having risen by half since 2000. 76% of homes are owner-occupied. Renters pay $723 a month at the median. Density works out to 34 people per square mile.
At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 38.3
US median: 38.9
Less educated
21% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 13,695 in 2000
12,463 in 2025 (Census Bureau estimate)
from 36 / sq mi in 2009
US average: 281
from 37.2 in 2000
US average: 38.9
Population, 1990 – 2024
12K 13K 13K 13K 14K 1990 2000 2010 2020 2024 Cass County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $68,125
+6%inflation adjusted, since 2000
from $35,243 in 2000
US average: $82,259
from $16,532 in 2000
US average: $44,673
Households earning $100K+
from 22.5% in 2009
US average: 53.3%
from 12.0% in 2000
US average: 12.5%
from 0.389 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 6%
Professional, scientific, technical 4.9%
Transportation & warehousing 4.2%
Public administration 2.9%
Arts, entertainment, food 2.8%
Education & health services 1.3%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$97,100
−2%inflation adjusted, since 2000
from $54,400 in 2000
US average: $376,019
$723
−5%inflation adjusted, since 2000
from $419 in 2000
US average: $1,442
from 74.9% in 2000
24.1% rent
from 15.8% in 2009
US average: 10.0%
from 2.56 people in 2009
US average: 2.54
from 19.3% in 2009
US average: 22.9%
from 31.1% in 2009
US average: 47.4%
from 1.8 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 90.1%(12,346)
Hispanic / Latino 8.5%(1,162)
2024
White, non-Hispanic 69.9%(8,934)
Hispanic / Latino 22.9%(2,929)
from 40 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 54 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 18 more ancestry groups with data from 12.6% in 2000
US average: 35.6%
High school or higher
from 80.0% in 2000
US average: 89.6%
from 3.3% in 2000
US average: 14.0%
Section 06
Commute & transportation from 16.9 min in 2000
US average: 26.5
from 73.6% in 2009
US average: 68.9%
from 19.8% in 2009
US average: 8.5%
from 0.5% in 2009
US average: 3.2%
from 3.5% in 2009
US average: 15.0%
from 1.4% in 2009
US average: 2.4%
from 0.2% in 2009
US average: 0.4%
from 5.5% in 2009
US average: 8.3%
Section 07
Work & employment from 6.3% in 2011
US average: 5.2%
from 63.7% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 75.4% in 2020
US average: 74.6%
from 13.8% in 2009
US average: 13.1%
from 21.3% in 2009
US average: 42.5%
Section 08
People & community from 8.4% in 2009
US average: 14.1%
from 11.8% in 2009
US average: 6.2%
from 11.9% in 2012
US average: 13.3%
from 12.2% in 2013
US average: 8.4%
from 67.4% in 2017
US average: 91.0%
Computer in household
from 85.8% in 2020
US average: 95.5%
from 88.5% in 2020
US average: 87.7%
from 82.2% in 2016
US average: 77.7%
from 15.4% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 30.3%(1,523)
Women 15+
Never married 24.3%(1,257)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 12.2% in 2013
US average: 8.4%
from 57.9% in 2020
US average: 54.8%
Direct-purchase
from 12.6% in 2020
US average: 13.8%
from 19.0% in 2020
US average: 18.4%
from 22.6% in 2020
US average: 20.9%
VA health care
from 2.1% in 2020
US average: 2.2%
Any private
from 69.1% in 2020
US average: 67.1%
Any public
from 40.0% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 17%(96)
Gulf War (1990s) 19.6%(111)
Share of the 565 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Cass County Head to head
Compare Cass County to nearby counties CASS COUNTY VS
Morgan County
Income $66,306 −3%
Home value $130,800 +35%
Population 32,515 +161%
SEE FULL COMPARISON →
CASS COUNTY VS
Schuyler County
Income $65,948 −3%
Home value $109,700 +13%
Population 6,657 −47%
SEE FULL COMPARISON →
CASS COUNTY VS
Menard County
Income $82,176 +21%
Home value $185,500 +91%
Population 11,863 −5%
SEE FULL COMPARISON →
CASS COUNTY VS
Mason County
Income $62,845 −8%
Home value $103,400 +6%
Population 12,411 same
SEE FULL COMPARISON →
Frequently asked
How many people live in Cass County, Illinois? Cass County, Illinois has about 12,784 residents according to the 2024 American Community Survey.
What is the median household income in Cass County, Illinois? The typical household in Cass County, Illinois earns about $68,125 a year. Half of households make more than that, and half make less.
Is Cass County, Illinois expensive? In Cass County, Illinois, the median home is worth about $97,100, and the typical rent is about $723 a month.
How educated are people in Cass County, Illinois? About 20.8% of adults age 25 and over in Cass County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Cass County, Illinois? About 11.1% of people in Cass County, Illinois live below the federal poverty line.
Has Cass County, Illinois grown since 1990? Yes, Cass County, Illinois has shrunk since 1990. The population has lost about 653 residents, a change of about -5 percent over that period.
Keep going
Explore from here 