Duncanville is a medium-sized city located in the state of Texas. With a population of 39,413 people and 11 associated neighborhoods, Duncanville is the 88th largest community in Texas.

Telecommuters are a relatively large percentage of the workforce: 10.47% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The citizens of Duncanville are slightly better educated than the national average of 21.84% for all cities and towns, with 23.93% of adults in Duncanville having a bachelor's degree or advanced degree.

The per capita income in Duncanville in 2022 was $29,349, which is middle income relative to Texas, and lower middle income relative to the rest of the US. This equates to an annual income of $117,396 for a family of four. However, Duncanville contains both very wealthy and poor people as well.

Duncanville is an extremely ethnically-diverse city. The people who call Duncanville home describe themselves as belonging to a variety of racial and ethnic groups. People of Hispanic or Latino origin are the most prevalent group in Duncanville, accounting for 42.06% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Duncanville residents report their race to be Black or African-American, followed by White. Important ancestries of people in Duncanville include English, German, Irish, Scottish, and French.

Duncanville also has a high percentage of its population that was born in another country: 15.91%.

The most common language spoken in Duncanville is English. Other important languages spoken here include Spanish and Arabic.