Duncanville is a city located in Dallas County, Texas. Duncanville has a 2026 population of 38,538. Duncanville is currently declining at a rate of -0.85% annually and its population has decreased by -4.92% since the most recent census, which recorded a population of 40,533 in 2020.
The median household income in Duncanville is $76,457 with a poverty rate of 10.58%. The median age in Duncanville is 36.2 years: 34.9 years for males, and 38.1 years for females. For every 100 females there are 91.1 males.
Data after 2023 is projected based on recent change
Overall: 36.2 years
Female: 38.1 years
Male: 34.9 years
There are 28,640 adults, (6,567 of whom are seniors) in Duncanville.
Female: 20,767 (52.3%)
Male: 18,916 (47.7%)
The racial composition of Duncanville includes 29.46% Black or African American, 29.36% White, 16.76% other race, and smaller percentages for Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Black or African American | 11,690 | 29.46% |
| White | 11,651 | 29.36% |
| Two or more races | 8,753 | 22.06% |
| Other race | 6,652 | 16.76% |
| Asian | 521 | 1.31% |
| Native American | 416 | 1.05% |
Duncanville 's average per capita income is $45,070. Household income levels show a median of $76,457. The poverty rate stands at 10.58%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $100,137 | - |
| Families | $87,196 | $100,347 |
| Households | $76,457 | $90,959 |
| Non Families | $51,679 | $57,996 |
Average Income
Median Household Income
Poverty Rate