Sangamon County's estimated 2026 population is 194,304 with a growth rate of 0.07% in the past year according to the most recent United States census data. Sangamon County is the 11th largest county in Illinois. The 2010 population was 197,769 and has seen a growth of -1.75% since that time.
Data after 2023 is projected based on recent change
Overall: 41 years
Female: 42.2 years
Male: 40 years
There are 152,307 adults, (37,849 of whom are seniors) in Sangamon County.
Female: 100,848 (51.7%)
Male: 94,099 (48.3%)
The racial composition of Sangamon County includes 78.15% White, 12.7% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 152,344 | 78.15% |
| Black or African American | 24,767 | 12.7% |
| Two or more races | 11,104 | 5.7% |
| Asian | 4,464 | 2.29% |
| Other race | 2,089 | 1.07% |
| Native American | 135 | 0.07% |
| Native Hawaiian or Pacific Islander | 44 | 0.02% |
Sangamon County's average per capita income is $54,994. Household income levels show a median of $75,357. The poverty rate stands at 13.11%.
Name | Median | Mean |
|---|---|---|
| Married Families | $124,315 | $150,808 |
| Families | $103,722 | $127,894 |
| Households | $75,357 | $100,226 |
| Non Families | $45,907 | $60,190 |
Average Income
Median Household Income
Poverty Rate