Hamilton County's estimated 2026 population is 7,857 with a growth rate of -0.03% in the past year according to the most recent United States census data. Hamilton County is the 89th largest county in Illinois. The 2010 population was 8,446 and has seen a growth of -6.97% since that time.
Data after 2023 is projected based on recent change
Overall: 43.9 years
Female: 44.9 years
Male: 42.5 years
There are 6,185 adults, (1,816 of whom are seniors) in Hamilton County.
Female: 3,962 (50.1%)
Male: 3,954 (49.9%)
The racial composition of Hamilton County includes 95.26% White, and smaller percentages for other race, Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 7,541 | 95.26% |
| Two or more races | 252 | 3.18% |
| Other race | 42 | 0.53% |
| Asian | 41 | 0.52% |
| Black or African American | 17 | 0.21% |
| Native American | 13 | 0.16% |
| Native Hawaiian or Pacific Islander | 10 | 0.13% |
Hamilton County's average per capita income is $49,638. Household income levels show a median of $65,746. The poverty rate stands at 12.08%.
Name | Median | Mean |
|---|---|---|
| Married Families | $104,091 | - |
| Families | $87,372 | $120,111 |
| Households | $65,746 | $92,896 |
| Non Families | $36,471 | $46,230 |
Average Income
Median Household Income
Poverty Rate