South Ottawa Flag

South Ottawa

County:
LaSalle County
County Seat:
No
Area (mi²):
19.664
State:
Illinois

South Ottawa is located in LaSalle County, Illinois. South Ottawa has a 2025 population of 8,373. South Ottawa is currently growing at a rate of 0.36% annually and its population has increased by 0.28% since the most recent census, which recorded a population of 8,350 in 2020.

The average household income in South Ottawa is $100,634 with a poverty rate of 10.06%The median age in South Ottawa is 39.8 years: 36.7 years for males, and 42.6 years for females.

8.4K
Total Population
426
Density (mi²)
30 0.36%
Growth

South Ottawa Population

Demographics

Economics and Income Statistics

Sources

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