Douglas County's estimated 2026 population is 19,912 with a growth rate of 0.16% in the past year according to the most recent United States census data. Douglas County is the 58th largest county in Illinois. The 2010 population was 19,977 and has seen a growth of -0.33% since that time.
Data after 2023 is projected based on recent change
Overall: 38.7 years
Female: 39.3 years
Male: 37.3 years
There are 14,892 adults, (3,679 of whom are seniors) in Douglas County.
Female: 10,049 (50.9%)
Male: 9,702 (49.1%)
The racial composition of Douglas County includes 88.66% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 17,512 | 88.66% |
| Two or more races | 1,294 | 6.55% |
| Other race | 535 | 2.71% |
| Black or African American | 282 | 1.43% |
| Asian | 82 | 0.42% |
| Native American | 46 | 0.23% |
Douglas County's average per capita income is $47,438. Household income levels show a median of $77,320. The poverty rate stands at 8.47%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,003 | $116,485 |
| Families | $92,796 | $105,346 |
| Households | $77,320 | $92,377 |
| Non Families | $41,573 | $58,638 |
Average Income
Median Household Income
Poverty Rate
