Checked
Cass County, IL
5 cities and towns and 6 ZIP codes in Cass County, Illinois.
Population
12,784
Land area
376sq mi
People per sq mi
34
ZIP codes
6
Cities and towns in Cass County
Cass County at a glance
- Cass County is 85% less dense than Illinois as a whole.
- The median household income is $68,125, 18% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $97,100 (63% below Illinois) and median rent is $723 a month.
- Its largest cities are Beardstown (6,169), Virginia (1,543) and Ashland (999).
Local data for Cass County, IL
Counts from official public data
Housing and community stats
Cass County, IL, American Community Survey 2020-2024
Median household income
$68,125
Poverty rate
11.1%
Median home value
$97,100
Prices +9.8% in a year
Median rent
$723/mo
Homeownership
75.9%
Bachelor's or higher
20.8%
Median age
38.3
Average commute
21.0 min
Largest reported origins and ancestries: German Americans (2,324), Mexican Americans (2,083), Irish Americans (1,086).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.5%
Sep 2026, -1.0 pts in a year
Average annual pay
$55,532
4,595 jobs, 2025
Income per person
$51,995
BEA, 2024
Federal spending
$70.3M
FY 2026, $5,392 per person
PPP loans
$21.6M
689 loans, 2,450 jobs reported
Campaign donations
$43.2K
Itemized, 2026 cycle
How people get to work
Cass County, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone80.0%
- Carpooled11.9%
- Public transit0.0%
- Walked0.9%
- Bicycle0.7%
- Taxi, ride-hailing, motorcycle or other0.8%
- Worked from home5.7%
Average one-way commute: 21.0 minutes for people who do not work from home.
Environment and hazard risk
Cass County, IL, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: cold wave
Storm events since 1996
278
Most often thunderstorm wind
Flood insurance policies
126
2.5% of homes, county
July high / Jan low
87° / 18°F
39.3 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Cass County, IL, CDC PLACES estimates
Obesity
40.6%
U.S. 33.3% +7.3 pts
Diabetes
13.4%
U.S. 12.1% +1.3 pts
Smoking
15.8%
U.S. 12.8% +3.0 pts
Uninsured (18-64)
12.6%
U.S. 11.1% +1.5 pts
Cities, towns and ZIP codes in Cass County
Population shown
Frequently asked questions
- What is the largest city in Cass County, IL?
- Beardstown is the largest city or town in Cass County, with about 6,169 residents.
- How many ZIP codes are in Cass County?
- Cass County includes 6 ZIP Code Tabulation Areas, including 62611, 62612, 62618, 62622, 62627.
- What is the population of Cass County, IL?
- About 12,784 people live in Cass County, based on American Community Survey 5-year estimates.
- What counties border Cass County?
- Cass County borders Sangamon County, Morgan County, Mason County, Menard County, Schuyler County, Brown County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023