Hancock County's 2026 population is estimated at 16,634, reflecting a -1.11% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Hancock County is the 61st largest county in Illinois. The 2010 population was 19,091 and has grown -12.87% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.9 years
Female: 47.6 years
Male: 44.9 years
There are 13,646 adults, (4,256 of whom are seniors) in Hancock County.
Female: 8,568 (49.6%)
Male: 8,713 (50.4%)
The racial composition of Hancock County includes 94.22% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 16,283 | 94.22% |
| Two or more races | 586 | 3.39% |
| Other race | 184 | 1.06% |
| Black or African American | 128 | 0.74% |
| Asian | 62 | 0.36% |
| Native American | 23 | 0.13% |
| Native Hawaiian or Pacific Islander | 15 | 0.09% |
Hancock County 's average per capita income is $45,709. Household income levels show a median of $65,865. The poverty rate stands at 12.27%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $95,157 | - |
| Families | $85,636 | $96,789 |
| Households | $65,865 | $83,824 |
| Non Families | $38,954 | $57,843 |
Average Income
Median Household Income
Poverty Rate
