Greene County's estimated 2026 population is 11,233 with a growth rate of -0.71% in the past year according to the most recent United States census data. Greene County is the 85th largest county in Illinois. The 2010 population was 13,890 and has seen a growth of -19.13% since that time.
Data after 2023 is projected based on recent change
Overall: 43.4 years
Female: 45.3 years
Male: 42.1 years
There are 9,108 adults, (2,434 of whom are seniors) in Greene County.
Female: 5,779 (49.5%)
Male: 5,904 (50.5%)
The racial composition of Greene County includes 95.85% White, and smaller percentages for Two or more races, Black or African American, Asian, other race, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 11,198 | 95.85% |
| Two or more races | 291 | 2.49% |
| Black or African American | 88 | 0.75% |
| Asian | 61 | 0.52% |
| Other race | 29 | 0.25% |
| Native American | 16 | 0.14% |
Greene County's average per capita income is $41,076. Household income levels show a median of $62,192. The poverty rate stands at 14.26%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,756 | - |
| Families | $81,221 | $99,315 |
| Households | $62,192 | $84,051 |
| Non Families | $31,586 | $49,249 |
Average Income
Median Household Income
Poverty Rate