Massac County's estimated 2026 population is 13,379 with a growth rate of -0.92% in the past year according to the most recent United States census data. Massac County is the 77th largest county in Illinois. The 2010 population was 15,380 and has seen a growth of -13.01% since that time.
Data after 2023 is projected based on recent change
The racial composition of Massac County includes 87.91% White, 6.33% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
White (87.91%)
Black or African American (6.33%)
Two or more races (5.16%)
Asian (0.38%)
Other race (0.16%)
Native American (0.07%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 12,270 | 87.91% |
| Black or African American | 883 | 6.33% |
| Two or more races | 720 | 5.16% |
| Asian | 53 | 0.38% |
| Other race | 22 | 0.16% |
| Native American | 10 | 0.07% |
Married
Widowed
Divorced
Separated
Never Married
Massac County's average per capita income is $41,851. Household income levels show a median of $62,584. The poverty rate stands at 14.92%.
Name | Median | Mean |
|---|---|---|
| Married Families | $83,977 | - |
| Families | $76,848 | $88,337 |
| Households | $62,584 | $74,853 |
| Non Families | $32,949 | $45,699 |
Average Income
Median Household Income
Poverty Rate