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County ProfileIL

Cass County

Population: 13,042 · 6 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
13,042
People
Median age
38.3
Housing
Total households
5,128
Income
Median household income
$68,125
Housing
Total housing units
5,676
Employment
Employment rate
56%
Education
Bachelor’s degree or higher
20.8%
Healthcare
Insured population
92.3%
County details
Local time 01:07:00(CT)
NameCass
Total ZIP codes6total
ZIP codes (by type)
5 Standard1 PO Box
Area code217, 447
TimezoneCentral Time (CT)
Coordinates39.9692024, -90.2457045
Land area375.8 sq miles(973.2 km²)

Map of Cass county, Illinois with ZIP codes

Map of Cass County, Illinois and ZIP codes

Cities and Communities in Cass County

Compare the largest cities in Cass County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Beardstown5,951$60,5871ZIPs
Virginia1,514$59,3751ZIPs
Ashland1,218$68,0601ZIPs
Chandlerville527$44,3751ZIPs
Arenzville367$80,7501ZIPs
Bluff Springs771ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Cass County

Review the most populated postal areas across Cass County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
62618Beardstown$65,2087,596
62691Virginia$78,7982,278
62612Ashland$69,5691,774
62611Arenzville$62,875978
62627Chandlerville$63,235928
62622Bluff Springs77

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS