Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Austin (city), TX | 961,855 |
| 2 | Round Rock (city), TX | 119,468 |
| 3 | Cedar Park (city), TX | 77,595 |
| 4 | Georgetown (city), TX | 67,176 |
| 5 | Pflugerville (city), TX | 65,191 |
| 6 | Leander (city), TX | 59,202 |
| 7 | Hutto (city), TX | 27,577 |
| 8 | Brushy Creek (CDP), TX | 22,519 |
| 9 | Steiner Ranch (CDP), TX | 16,713 |
| 10 | Taylor (city), TX | 16,267 |
| 11 | Wells Branch (CDP), TX | 14,000 |
| 12 | Manor (city), TX | 13,652 |
| 13 | Hornsby Bend (CDP), TX | 12,168 |
| 14 | Elgin (city), TX | 9,784 |
| 15 | Sonterra (CDP), TX | 7,679 |
| 16 | West Lake Hills (city), TX | 3,444 |
| 17 | Santa Rita Ranch (CDP), TX | 3,152 |
| 18 | Serenada (CDP), TX | 2,098 |
| 19 | Jarrell (city), TX | 1,753 |
| 20 | Bartlett (city), TX | 1,633 |