Gualeguaychu's 2025 population is now estimated at 91,568. In 2001, the population of Gualeguaychu was 74,681. Gualeguaychu has grown by 10,954 in the last year, which represents a 0.85% annual change.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Buenos Aires | 15,752,300 | 0.86% |
| Cordoba | 1,640,600 | 0.9% |
| Rosario | 1,631,090 | 1.12% |
| Mendoza | 1,257,180 | 1.2% |
| San Miguel de Tucuman | 1,051,040 | 1.14% |
| La Plata | 933,193 | 1.03% |
| Salta | 737,555 | 1.25% |
| Mar Del Plata | 698,471 | 0.96% |
| Santa Fe | 596,474 | 1.07% |
| San Juan | 560,819 | 0.91% |
| Santiago Del Estero | 464,131 | 1.13% |
| Resistencia | 456,388 | 1.03% |
| Neuquen-Plottier-Cipolletti | 439,389 | 1.23% |
| Corrientes | 432,527 | 1.08% |
| Posadas | 419,963 | 1.28% |
| San Salvador de Jujuy | 383,507 | 1.09% |
| Bahia Blanca | 327,329 | 0.84% |