Franklin County's estimated 2026 population is 36,878 with a growth rate of -0.1% in the past year according to the most recent United States census data. Franklin County is the 36th largest county in Illinois. The 2010 population was 40,035 and has seen a growth of -7.89% since that time.
Data after 2023 is projected based on recent change
Overall: 43.4 years
Female: 44.7 years
Male: 40.7 years
There are 29,083 adults, (7,835 of whom are seniors) in Franklin County.
Female: 18,783 (50.3%)
Male: 18,540 (49.7%)
The racial composition of Franklin County includes 94.71% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 35,347 | 94.71% |
| Two or more races | 1,480 | 3.97% |
| Other race | 182 | 0.49% |
| Black or African American | 154 | 0.41% |
| Asian | 131 | 0.35% |
| Native American | 29 | 0.08% |
Franklin County's average per capita income is $42,394. Household income levels show a median of $56,740. The poverty rate stands at 17.51%.
Name | Median | Mean |
|---|---|---|
| Married Families | $88,057 | $101,097 |
| Families | $71,222 | $89,339 |
| Households | $56,740 | $72,759 |
| Non Families | $29,484 | $41,869 |
Average Income
Median Household Income
Poverty Rate
