Cass County Flag

Cass County

State:
Iowa
County Seat:
Atlantic

Cass County's estimated 2025 population is 12,917 with a growth rate of -0.82% in the past year according to the most recent United States census data. Cass County is the 58th largest county in Iowa. The 2010 population was 13,927 and has seen a growth of -7.25% since that time.

12,917
Total Population
23
Population Density (mi²)
58
Population Rank (State)
-107 -0.82%
Annual Population Growth

Cass County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)