Duncanville is located in Texas. Duncanville, Texas has a population of 38,405. Duncanville is more family-centric than the surrounding county with 32% households with children. The county percentage for households with children is 31%.
The median household income in Duncanville, Texas is $58,396. The median household income for the surrounding county is $65,185 compared to the national median of $66,222. The median age of people living in Duncanville is 36.6 years.
The average high temperature in July is 96.03 degrees, with an average low temperature in January of 35.44 degrees. The annual precipitation is 37.92.