| City : | Duncanville City |
| County : | Dallas County, Fayette County, Nicholas County |
| State : | Texas (TX) |
| | |
| Land Area : | 11.23 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 32.6459498 |
| Longitude : | -96.9138704 |
| | |
| Population (2010): | 38,524 |
| Population Estimate (2012) : | 38,590 |
| Population Density : | 3,429.13/sq mi |
| Housing Units (2012) : | 14,011 |
| Median Household Income (2012) : | $56,040 (Texas : $51,563, USA : $53,046) |
| Median Family Income (2012) : | $61,110 (Texas : $60,621, USA : $64,585) |
| Median House Price (2012) : | $112,800 (Texas : $128,000, USA : $181,400) |