Jersey County's estimated 2026 population is 21,134 with a growth rate of -0.04% in the past year according to the most recent United States census data. Jersey County is the 53rd largest county in Illinois. The 2010 population was 22,997 and has seen a growth of -8.1% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jersey County includes 95.34% White, and smaller percentages for Black or African American, Asian, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (95.34%)
Two or more races (3.27%)
Black or African American (0.58%)
Asian (0.5%)
Other race (0.17%)
Native Hawaiian or Pacific Islander (0.11%)
Native American (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 20,341 | 95.34% |
| Two or more races | 698 | 3.27% |
| Black or African American | 124 | 0.58% |
| Asian | 107 | 0.5% |
| Other race | 36 | 0.17% |
| Native Hawaiian or Pacific Islander | 24 | 0.11% |
| Native American | 6 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Jersey County's average per capita income is $53,002. Household income levels show a median of $79,104. The poverty rate stands at 9.97%.
Name | Median | Mean |
|---|---|---|
| Married Families | $112,420 | - |
| Families | $97,557 | $120,085 |
| Households | $79,104 | $97,570 |
| Non Families | $34,182 | $47,890 |
Average Income
Median Household Income
Poverty Rate