Stanislaus County Flag

Stanislaus County

State:
California
County Seat:
Modesto

Stanislaus County's estimated 2025 population is 560,023 with a growth rate of 0.55% in the past year according to the most recent United States census data. Stanislaus County is the 16th largest county in California. The 2010 population was 515,137 and has seen a growth of 8.71% since that time.

560,023
Total Population
374
Population Density (mi²)
16
Population Rank (State)
3.1K 0.55%
Annual Population Growth

Stanislaus 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)