Auburn Flag

Auburn

County:
Sangamon County
County Seat:
No
Area (mi²):
35.801
State:
Illinois

Auburn is located in Sangamon County, Illinois. Auburn has a 2025 population of 5,738. Auburn is currently declining at a rate of -0.59% annually and its population has decreased by -3.34% since the most recent census, which recorded a population of 5,936 in 2020.

The average household income in Auburn is $98,388 with a poverty rate of 8.5%. The median age in Auburn is 36 years: 33.6 years for males, and 37.6 years for females.

5.7K
Total Population
160
Density (mi²)
-34 -0.59%
Growth

Auburn Population

Auburn Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Auburn includes 96.93% White, and smaller percentages for Two or more races, Asian, Black or African American and multiracial populations.

Population by Race

White (96.9%)

Two or more races (2.7%)

Asian (0.2%)

Black or African American (0.2%)

Race
Population
Percentage (of total)
White5,71496.93%
Two or more races1602.71%
Asian110.19%
Black or African American100.17%

Auburn Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Auburn's average per capita income is $49,297. Household income levels show a median of $80,000. The poverty rate stands at 8.5%.

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$124,883-
Families$117,656$122,768
Households$80,000$98,388
Non Families$39,918$48,673

$49,297

Average Income

$80,000

Median Household Income

8.5%

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)