Evolución del voto por el Frente Amplio
| Departamento | 1971 | 1984 | 1989 | 1994 | 1999 1ra.vuelta |
1999 2da. vuelta |
| Artigas | 2.656 | 2.291 | 2.193 | 6.148 | 10.907 | 14.792 |
| Canelones | 19.262 | 30.978 | 35.424 | 66.448 | 106.571 | 123.008 |
| Cerro Largo | 3.457 | 3.126 | 3.007 | 7.736 | 15.233 | 19.044 |
| Colonia | 8.457 | 9.312 | 9.067 | 16.174 | 25.198 | 30.322 |
| Durazno | 2.976 | 1.843 | 2.069 | 4.330 | 8.445 | 10.706 |
| Florida | 3.895 | 3.977 | 4.222 | 8.533 | 13.958 | 16.952 |
| Flores | 1.500 | 811 | 1.351 | 2.348 | 3.996 | 5.318 |
| Lavalleja | 3.308 | 2.216 | 2.251 | 5.047 | 9.457 | 11.746 |
| Maldonado | 4.337 | 6.683 | 7.444 | 13.725 | 30.501 | 34.199 |
| Montevideo | 212.406 | 297.490 | 312.778 | 394.286 | 484.441 | 522.702 |
| Paysandu | 7.464 | 9.073 | 6.912 | 17.804 | 30.921 | 34.691 |
| Rio Negro | 3.550 | 2.764 | 3.214 | 5.636 | 9.832 | 12.253 |
| Rivera | 3.947 | 3.540 | 3.322 | 5.872 | 13.083 | 16.661 |
| Rocha | 2.613 | 2.809 | 2.752 | 6.267 | 14.016 | 18.992 |
| Salto | 6.635 | 6.725 | 5.771 | 14.637 | 24.029 | 27.965 |
| San Jose | 4.895 | 5.880 | 5.901 | 12.014 | 19.990 | 23.185 |
| Soriano | 5.562 | 5.672 | 5.517 | 11.818 | 19.273 | 22.616 |
| Tacuarembo | 4.969 | 4.236 | 3.740 | 7.700 | 13.679 | 17.246 |
| Treinta y Tres | 2.386 | 1.643 | 1.468 | 3.842 | 7.672 | 9.799 |
| TOTALES | 304.275 | 401.069 | 418.403 | 610.365 | 861.202 | 972.197 |