Gallatin County's estimated 2026 population is 4,549 with a growth rate of -1.45% in the past year according to the most recent United States census data. Gallatin County is the 98th largest county in Illinois. The 2010 population was 5,574 and has seen a growth of -18.39% since that time.
Data after 2023 is projected based on recent change
Overall: 46.7 years
Female: 48.7 years
Male: 45.1 years
There are 3,833 adults, (1,217 of whom are seniors) in Gallatin County.
Female: 2,391 (49.6%)
Male: 2,428 (50.4%)
The racial composition of Gallatin County includes 96.18% White, and smaller percentages for Two or more races, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 4,635 | 96.18% |
| Two or more races | 87 | 1.81% |
| Black or African American | 54 | 1.12% |
| Asian | 37 | 0.77% |
| Native American | 6 | 0.12% |
Gallatin County's average per capita income is $43,042. Household income levels show a median of $59,219. The poverty rate stands at 13.58%.
Name | Median | Mean |
|---|---|---|
| Married Families | $86,128 | - |
| Families | $75,345 | $95,343 |
| Households | $59,219 | $77,408 |
| Non Families | $34,524 | $43,796 |
Average Income
Median Household Income
Poverty Rate