Leon's 2025 population is now estimated at 1,733,823. In 2000, the population of Leon was 1,269,179. Leon experienced a decrease of -23,988 residents over the past year, marking an annual decline of -0.2%.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Mexico City | 22,752,400 | 1.1% |
| Guadalajara | 5,578,580 | 1.43% |
| Monterrey | 5,272,360 | 1.48% |
| Puebla | 3,443,290 | 1.44% |
| Toluca de Lerdo | 2,719,520 | 1.69% |
| Tijuana | 2,333,220 | 1.57% |
| Leon de los Aldamas | 1,950,390 | 1.35% |
| La Laguna | 1,866,580 | 2.21% |
| Ciudad Juarez | 1,625,980 | 1.37% |
| Queretaro | 1,459,290 | 1.56% |
| San Luis Potosi | 1,310,720 | 1.44% |
| Merida | 1,258,230 | 1.5% |
| Mexicali | 1,215,000 | 1.51% |
| Aguascalientes | 1,196,770 | 1.48% |
| Cuernavaca | 1,156,360 | 1.42% |
| Chihuahua | 1,153,540 | 1.6% |
| Tampico | 1,077,740 | 1.43% |
| Saltillo | 1,066,100 | 1.5% |
| Cancun | 1,065,400 | 1.95% |
| Acapulco de Juarez | 1,046,710 | 1.35% |