Auburn is located in Sangamon County, Illinois. Auburn has a 2025 population of 227 . Auburn is currently declining at a rate of -0.87% annually and its population has decreased by -2.99% since the most recent census, which recorded a population of 234 in 2020.
The average household income in Auburn is $49,519 with a poverty rate of 32.2%. The median age in Auburn is 58.7 years: 60.5 years for males, and 58.2 years for females. For every 100 females there are 137.6 males.
Data after 2023 is projected based on recent change
The racial composition of Auburn includes 99.72% White, and smaller percentages for Two or more races and multiracial populations.
White (99.72%)
Two or more races (0.28%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 353 | 99.72% |
| Two or more races | 1 | 0.28% |
Married
Widowed
Divorced
Separated
Never Married
Auburn's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 32.2%.
Name | Median | Mean |
|---|---|---|
| Non Families | $19,028 | $25,325 |
| Households | - | $49,519 |
| Families | - | $68,149 |
| Married Families | - | - |
Average Income
Median Household Income
Poverty Rate