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 |
|---|---|---|---|---|---|---|---|
| Pasadena | 1 | 145,165 | 151,368 | -1.06% | 3,323 | 43.7 | City |
| Atascocita | 2 | 93,000 | 81,860 | 2.13% | 3,893 | 23.9 | CDP |
| Baytown | 3 | 83,633 | 85,369 | -0.52% | 2,065 | 40.5 | City |
| Spring | 4 | 65,535 | 61,514 | 1.24% | 2,914 | 22.5 | CDP |
| Channelview | 5 | 44,023 | 43,378 | 0.94% | 3,055 | 14.4 | CDP |
| La Porte | 6 | 37,554 | 35,301 | 1.52% | 2,019 | 18.6 | City |
| Deer Park | 7 | 32,782 | 34,357 | -1.19% | 3,120 | 10.5 | City |
| Cloverleaf | 8 | 25,034 | 25,955 | 0.6% | 8,109 | 3.1 | CDP |
| Bellaire | 9 | 16,958 | 17,188 | -0.34% | 4,714 | 3.6 | City |
| Humble | 10 | 16,072 | 16,731 | -1.02% | 1,621 | 9.9 | City |
| South Houston | 11 | 15,694 | 16,149 | -0.72% | 5,152 | 3.0 | City |
| Aldine | 12 | 15,451 | 16,308 | -0.19% | 1,963 | 7.9 | CDP |
| Tomball | 13 | 14,823 | 12,335 | 4.38% | 1,138 | 13.0 | City |
| West University Place | 14 | 14,719 | 15,006 | -0.49% | 7,345 | 2.0 | City |
| Seabrook | 15 | 13,687 | 13,587 | 0.18% | 2,790 | 4.9 | City |
| Webster | 16 | 12,092 | 12,450 | -0.74% | 1,907 | 6.3 | City |
| Galena Park | 17 | 10,132 | 10,688 | -1.35% | 2,109 | 4.8 | City |
| Jacinto City | 18 | 9,151 | 9,575 | -1.15% | 4,938 | 1.9 | City |
| Jersey Village | 19 | 7,556 | 7,943 | -1.27% | 2,174 | 3.5 | City |
| Highlands | 20 | 7,332 | 7,345 | -0.18% | 1,502 | 4.9 | CDP |
| Nassau Bay | 21 | 5,043 | 5,323 | -1.37% | 4,151 | 1.2 | City |
| Hunters Creek Village | 22 | 4,343 | 4,378 | -0.21% | 2,219 | 2.0 | City |
| Spring Valley Village | 23 | 4,288 | 4,224 | 0.38% | 3,529 | 1.2 | City |
| Bunker Hill Village | 24 | 3,771 | 3,821 | -0.34% | 2,615 | 1.4 | City |
| Taylor Lake Village | 25 | 3,721 | 3,688 | 0.21% | 3,319 | 1.1 | City |
| Waller | 26 | 3,589 | 2,705 | 6.56% | 602 | 6.0 | City |
| Barrett | 27 | 3,536 | 3,389 | 0.68% | 553 | 6.4 | CDP |
| Piney Point Village | 28 | 3,053 | 3,107 | -0.46% | 1,434 | 2.1 | City |
| El Lago | 29 | 2,905 | 3,065 | -1.36% | 4,511 | 0.6 | City |
| Sheldon | 30 | 2,480 | 2,179 | 1.43% | 998 | 2.5 | CDP |
| Roman Forest | 31 | 2,479 | 1,785 | 7.5% | 1,139 | 2.2 | City |
| Hedwig Village | 32 | 2,306 | 2,361 | -0.6% | 2,438 | 0.9 | City |
| Crosby | 33 | 2,025 | 2,276 | -0.93% | 909 | 2.2 | CDP |
| Patton Village | 34 | 1,962 | 1,664 | 3.92% | 864 | 2.3 | City |
| Southside Place | 35 | 1,861 | 1,836 | 0.32% | 7,474 | 0.2 | City |
| Woodbranch | 36 | 1,597 | 1,348 | 4.04% | 795 | 2.0 | City |
| Shoreacres | 37 | 1,498 | 1,557 | -0.99% | 1,653 | 0.9 | City |
| Porter Heights | 38 | 892 | 1,343 | -5.81% | 276 | 3.2 | CDP |
| Hilshire Village | 39 | 808 | 814 | -0.25% | 3,026 | 0.3 | City |
| Morgan's Point | 40 | 266 | 270 | -0.38% | 174 | 1.5 | City |
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.
Pasadena is the largest city in Harris County.
Morgan's Point is the smallest city in Harris County.
There are 40 cities in Harris County, Texas.