Jersey County's estimated 2026 population is 21,165 with a growth rate of 0.02% in the past year according to the most recent United States census data. Jersey County is the 54th largest county in Illinois. The 2010 population was 22,997 and has seen a growth of -7.97% since that time.
Data after 2023 is projected based on recent change
Overall: 43.7 years
Female: 44.4 years
Male: 42.7 years
There are 17,067 adults, (4,391 of whom are seniors) in Jersey County.
Female: 10,892 (51.2%)
Male: 10,382 (48.8%)
The racial composition of Jersey County includes 94.94% White, and smaller percentages for Asian, Black or African American, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 20,197 | 94.94% |
| Two or more races | 724 | 3.4% |
| Asian | 143 | 0.67% |
| Black or African American | 118 | 0.55% |
| Other race | 65 | 0.31% |
| Native Hawaiian or Pacific Islander | 22 | 0.1% |
| Native American | 5 | 0.02% |
Jersey County's average per capita income is $50,303. Household income levels show a median of $80,361. The poverty rate stands at 8.83%.
Name | Median | Mean |
|---|---|---|
| Married Families | $108,310 | - |
| Families | $97,951 | $120,229 |
| Households | $80,361 | $98,416 |
| Non Families | $38,482 | $51,058 |
Average Income
Median Household Income
Poverty Rate