Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Irving | 1 | 253,561 | 256,807 | -0.32% | 3,786 | 67.0 | City |
| Garland | 2 | 242,523 | 246,311 | -0.39% | 4,265 | 56.9 | City |
| Grand Prairie | 3 | 204,093 | 196,255 | 0.97% | 2,815 | 72.5 | City |
| Mesquite | 4 | 146,547 | 149,627 | -0.52% | 2,985 | 49.1 | City |
| Carrollton | 5 | 132,706 | 133,552 | -0.16% | 3,621 | 36.7 | City |
| Richardson | 6 | 116,813 | 119,299 | -0.53% | 4,090 | 28.6 | City |
| Rowlett | 7 | 68,162 | 62,766 | 2.02% | 3,285 | 20.7 | City |
| DeSoto | 8 | 55,632 | 56,062 | -0.19% | 2,571 | 21.6 | City |
| Cedar Hill | 9 | 48,179 | 49,106 | -0.48% | 1,346 | 35.8 | City |
| Coppell | 10 | 40,925 | 42,840 | -1.16% | 2,837 | 14.4 | City |
| Lancaster | 11 | 39,868 | 41,255 | -0.86% | 1,206 | 33.1 | City |
| Duncanville | 12 | 38,335 | 40,526 | -1.41% | 3,422 | 11.2 | City |
| Farmers Branch | 13 | 37,150 | 36,218 | 0.63% | 3,127 | 11.9 | City |
| Sachse | 14 | 34,030 | 27,086 | 5.38% | 3,496 | 9.7 | City |
| Balch Springs | 15 | 26,407 | 27,622 | -1.14% | 2,926 | 9.0 | City |
| University Park | 16 | 24,859 | 25,239 | -0.38% | 6,744 | 3.7 | City |
| Seagoville | 17 | 20,006 | 18,554 | 1.85% | 1,064 | 18.8 | City |
| Glenn Heights | 18 | 19,709 | 16,044 | 4.87% | 2,710 | 7.3 | City |
| Addison | 19 | 17,103 | 17,089 | 0.02% | 3,929 | 4.4 | Town |
| Sunnyvale | 20 | 8,705 | 7,829 | 2.58% | 526 | 16.5 | Town |
| Highland Park | 21 | 8,573 | 8,849 | -0.8% | 3,822 | 2.2 | Town |
| Wilmer | 22 | 6,645 | 5,604 | 4.07% | 591 | 11.2 | City |
| Hutchins | 23 | 6,326 | 5,618 | 2.88% | 695 | 9.1 | City |
| Ovilla | 24 | 4,837 | 4,325 | 2.72% | 836 | 5.8 | City |
| Cockrell Hill | 25 | 3,581 | 3,788 | -1.43% | 6,153 | 0.6 | City |
| Combine | 26 | 2,708 | 2,255 | 4.35% | 372 | 7.3 | City |
| Bear Creek Ranch | 27 | 2,554 | 1,349 | 7.72% | 4,243 | 0.6 | CDP |
| Oak Leaf | 28 | 1,719 | 1,558 | 2.38% | 727 | 2.4 | City |
| Pecan Hill | 29 | 745 | 732 | 0.4% | 349 | 2.1 | City |
| Mesquite | 30 | 85 | 163 | -26.09% | 1,700 | 0.1 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Irving is the largest city in Dallas County.
Mesquite is the smallest city in Dallas County.
There are 30 cities in Dallas County, Texas.