Oswego Flag

Oswego

County:
Kendall County
County Seat:
No
Area (mi²):
16.213
State:
Illinois

Oswego is a village located in Kendall County, Illinois. Oswego has a 2026 population of 40,795. Oswego is currently growing at a rate of 2.54% annually and its population has increased by 17.42% since the most recent census, which recorded a population of 34,744 in 2020.

The median household income in Oswego is $123,792 with a poverty rate of 2.61%. The median age in Oswego is 38.7 years: 38.3 years for males, and 38.8 years for females. For every 100 females there are 92.5 males.

40.8K
Total Population
2,516
Density (mi²)
1K 2.54%
Growth

Oswego Population

Oswego Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202640,7951,0092.54%
202539,7861,0082.6%
202438,7781,6984.58%
202337,0801,1283.14%
202235,9525961.69%
202135,3567332.12%
202034,744-1,489-4.11%
201936,2331,0633.02%
201835,1703260.94%
201734,8443751.09%
201634,4695071.49%
201533,9627202.17%
201433,2428982.78%
201332,3445331.68%
201231,8115761.84%
201131,2355761.88%
201030,6593041%
200013,3269,450243.81%
19903,87685528.3%
19803,02100%

Median Age

Overall: 38.7 years
Female: 38.8 years
Male: 38.3 years

Oswego Adults

There are 26,803 adults, (3,984 of whom are seniors) in Oswego.

Sex Ratio

Female: 18,895 (51.9%)
Male: 17,480 (48.1%)

Demographics

The racial composition of Oswego includes 64.83% White, 10.35% Black or African American, 4.6% Asian, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White23,58164.83%
Two or more races6,17216.97%
Black or African American3,76610.35%
Asian1,6744.6%
Other race8242.27%
Native American3580.98%
Race
Population ↓
Percentage (of total)
Two or more races4,39212.07%
White8682.39%
Other race8112.23%
Native American2970.82%
Black or African American770.21%
Asian620.17%
Race
Population ↓
Percentage (of total)
White22,71362.44%
Black or African American3,68910.14%
Two or more races1,7804.89%
Asian1,6124.43%
Native American610.17%
Other race130.04%

Oswego Marital Status

Economics and Income Statistics

Oswego 's average per capita income is $70,621. Household income levels show a median of $123,792. The poverty rate stands at 2.61%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$156,366-
Families$132,933$150,471
Households$123,792$138,748
Non Families$64,560$90,898

$70,621

Average Income

$123,792

Median Household Income

2.61%

Poverty Rate

Nearby Cities

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)