| Instituto | Data | Marcelo Miranda PMDB |
Siqueira Campos PSDB |
Indecisos Brancos Nulos |
Capitão Azevedo PSDC |
Leomar Quintanilha PC do B |
Prof. Elísio PSOL |
José Santana PT |
| Ibope | 28-30.set.06 | 51 | 39 | 5 | 0 | 4 | 1 | - |
| Ibope | 17-19.set.06 | 49 | 40 | 8 | 0 | 2 | 1 | - |
| Ibope | 20-22.ago.06 | 41 | 45 | 12 | 0 | 2 | 0 | - |
| Ibope | 14-17.jun.06 | 40 | 44 | 15 | - | 0 | - | 1 |
| Ibope | 14-17.jun.06 | 42 | 44 | 13 | - | - | - | - |
| Instituto | Data | Nº de entrevistas | Local do registro | Nº do registro | Margem de erro |
| Ibope | 28-30.set.06 | 812 | TRE-TO | 12098/2006 | 3 pontos |
| Ibope | 17-19.set.06 | 812 | TRE-TO | 11284/2006 | 3 pontos |
| Ibope | 20-22.ago.06 | 812 | TRE-TO | 8525/2006 | 3 pontos |
| Ibope | 14-17.jun.06 | 812 | TRE-TO | 4160/2006 | 3 pontos |
| Instituto | Data | Marcelo Miranda PMDB |
Siqueira Campos PSDB |
Capitão Azevedo PSDC |
Indecisos Brancos Nulos |
Leomar Quintanilha PC do B |
Outros |
| Ibope | 28-30.set.06 | 50 | 36 | 0 | 11 | 2 | - |
| Ibope | 17-19.set.06 | 44 | 38 | - | 16 | 1 | 0 |
| Ibope | 20-22.ago.06 | 35 | 36 | 0 | 28 | 1 | 0 |
| Ibope | 14-17.jun.06 | 34 | 37 | - | 28 | - | - |
| Instituto | Data | Lula (PT) |
Alckmin (PSDB) |
Heloísa Helena (PSOL) |
Cristovam Buarque PDT |
Indecisos Brancos Nulos |
Eymael PSDC |
Luciano Bivar PSL |
Rui Costa Pimenta PCO |
Ana Maria Rangel PRP |
Outros |
| Ibope | 28-30.set.06 | 64 | 28 | 3 | 1 | 4 | 0 | 0 | - | 0 | - |
| Ibope | 17-19.set.06 | 63 | 23 | 3 | 1 | 6 | - | 0 | 2 | 2 | - |
| Ibope | 20-22.ago.06 | 58 | 20 | 7 | 0 | 12 | 0 | 0 | 0 | 0 | - |
| Ibope | 14-17.jun.06 | 58 | 15 | 3 | - | 22 | - | - | - | - | 1 |