Duncanville, Texas

Duncanville population, 2020 to 2024

Duncanville lost 1,330 residents from July 2020 to July 2024, a change of -3.3%. In the latest year it moved by -132. Among 384 Texas places of 5,000 or more, that growth ranks 371st; the median place changed by +4.5%. The median place of 5,000+ in Texas has 15,345 people, so Duncanville is 2.6 times that size.

Duncanville covers 11.20 square miles of land, for 3,500 people per square mile of land. The median Texas place of 5,000+ has 1,561, so Duncanville is denser than the typical town.

What county Duncanville is in

All of Duncanville's residents live in Dallas County, which had 2,656,028 residents in 2024. Duncanville holds 1.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Duncanville

2 ZIP Code Tabulation Areas (ZCTAs) overlap Duncanville by at least 10% of the ZCTA's or the city's land: 75116, 75137. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Duncanville is

The Census internal point of Duncanville is at 32.646000, -96.913900. Austin, the capital, is 171.0 miles SSW in a straight line. The nearest larger place is DeSoto, TX (56,711 people), 4.4 miles away. The nearest city of 100,000 or more is Grand Prairie, TX, 6.8 miles away.

Daylight in Duncanville

At 32.65° N, Duncanville gets about 14 h 18 min of daylight around the June solstice and 10 h 00 min around the December solstice, a swing of 4 h 18 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Duncanville

The eight nearest incorporated places of 1,000+ in Texas, measured between internal points. The closest is DeSoto, 4.4 miles away, with 56,711 people.