Quillacollo's 2026 population is now estimated at 209,579. In 2001, the population of Quillacollo was 74,980. Quillacollo has grown by 91,720 in the last year, which represents a 4.2% annual change.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| La Paz | 2,030,730 | 1.67% |
| Cochabamba | 1,489,160 | 1.98% |
| Santa Cruz de la Sierra | 1,441,406 | 1.02% |
| Oruro | 359,222 | 1.9% |
| Sucre | 237,480 | 1.02% |
| Tarija | 179,528 | 1.03% |
| Potosi | 174,973 | 1.03% |
| Sacaba | 149,570 | 1.04% |
| Montero | 107,294 | 1.03% |
| Trinidad | 101,454 | 1.03% |
| Riberalta | 78,754 | 1.02% |
| Warnes | 77,668 | 1.14% |
| Tiquipaya | 49,237 | 1.06% |
| Cobija | 42,849 | 1.07% |
| Villazon | 35,167 | 1.02% |
| Villamontes | 30,228 | 1.06% |
| Bermejo | 29,459 | 1.01% |
| Camiri | 28,855 | 1.01% |
| Tupiza | 27,302 | 1.02% |
| Llallagua | 25,166 | 1.02% |
| San Ignacio de Velasco | 23,126 | 1.02% |
| San Julian | 20,687 | 1.11% |
| Huanuni | 20,336 | 1.03% |