De Witt County's estimated 2026 population is 15,295 with a growth rate of -0.08% in the past year according to the most recent United States census data. De Witt County is the 68th largest county in Illinois. The 2010 population was 16,589 and has seen a growth of -7.8% since that time.
Data after 2023 is projected based on recent change
The racial composition of De Witt County includes 94.5% White, and smaller percentages for Black or African American, other race, Native American, Asian and multiracial populations.
White (94.5%)
Two or more races (3.47%)
Black or African American (1.03%)
Other race (0.46%)
Native American (0.34%)
Asian (0.2%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 14,610 | 94.5% |
| Two or more races | 537 | 3.47% |
| Black or African American | 160 | 1.03% |
| Other race | 71 | 0.46% |
| Native American | 52 | 0.34% |
| Asian | 31 | 0.2% |
Married
Widowed
Divorced
Separated
Never Married
De Witt County's average per capita income is $47,052. Household income levels show a median of $64,802. The poverty rate stands at 10.1%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,035 | - |
| Families | $89,912 | $103,347 |
| Households | $64,802 | $83,717 |
| Non Families | $37,440 | $51,203 |
Average Income
Median Household Income
Poverty Rate
