| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Houston | 1 | 2,419,191 | 2,298,295 | 0.91% | 3,775 | 641 | City |
| Pasadena | 2 | 148,007 | 151,401 | -0.36% | 3,388 | 44 | City |
| Baytown | 3 | 86,670 | 85,386 | 0.13% | 2,167 | 40 | City |
| La Porte | 4 | 38,637 | 35,298 | 1.72% | 2,077 | 19 | City |
| Deer Park | 5 | 34,298 | 34,381 | 0.05% | 3,243 | 11 | City |
| Bellaire | 6 | 17,491 | 17,188 | 0.33% | 4,863 | 4 | City |
| Tomball | 7 | 16,471 | 12,309 | 4.46% | 1,265 | 13 | City |
| Humble | 8 | 16,429 | 16,729 | -0.33% | 1,657 | 10 | City |
| South Houston | 9 | 16,405 | 16,167 | -0.01% | 5,386 | 3 | City |
| West University Place | 10 | 15,192 | 15,022 | 0.22% | 7,581 | 2 | City |
| Seabrook | 11 | 14,060 | 13,584 | 0.62% | 2,866 | 5 | City |
| Webster | 12 | 12,518 | 12,450 | 0.09% | 1,974 | 6 | City |
| Galena Park | 13 | 10,287 | 10,687 | -0.63% | 2,141 | 5 | City |
| Jacinto City | 14 | 9,352 | 9,579 | -0.38% | 5,047 | 2 | City |
| Jersey Village | 15 | 7,686 | 7,941 | -0.56% | 2,211 | 3 | City |
| Waller | 16 | 5,750 | 2,703 | 6.88% | 940 | 6 | City |
| Nassau Bay | 17 | 5,184 | 5,323 | -0.5% | 4,267 | 1 | City |
| Hunters Creek Village | 18 | 4,523 | 4,380 | 0.56% | 2,311 | 2 | City |
| Spring Valley Village | 19 | 4,444 | 4,224 | 0.95% | 3,658 | 1 | City |
| Bunker Hill Village | 20 | 3,911 | 3,818 | 0.39% | 2,712 | 1 | City |
| Taylor Lake Village | 21 | 3,797 | 3,691 | 0.61% | 3,387 | 1 | City |
| Piney Point Village | 22 | 3,149 | 3,104 | 0.25% | 1,479 | 2 | City |
| El Lago | 23 | 2,965 | 3,056 | -0.64% | 4,604 | 1 | City |
| Roman Forest | 24 | 2,493 | 1,770 | 6.22% | 1,146 | 2 | City |
| Hedwig Village | 25 | 2,384 | 2,374 | 0.04% | 2,520 | 1 | City |
| Patton Village | 26 | 2,152 | 1,653 | 4.01% | 947 | 2 | City |
| Southside Place | 27 | 1,936 | 1,822 | 1.04% | 7,775 | 0 | City |
| Woodbranch | 28 | 1,685 | 1,344 | 3.76% | 839 | 2 | City |
| Shoreacres | 29 | 1,531 | 1,555 | -0.26% | 1,690 | 1 | City |
| Hilshire Village | 30 | 848 | 814 | 0.59% | 3,176 | 0 | City |
| Morgan's Point | 31 | 273 | 269 | 0.37% | 333 | 1 | City |
Houston is the largest city in Harris County, with a population of 2,419,191.
Morgan's Point is the smallest city in Harris County, with a population of 273.
There are 31 cities in Harris County, Texas.