1966 Special Election Results
| MEASURE 51 REVISE CHARTER CHAPTERS VI, IX, XI, XII, XIII | TOTAL VOTES RECEIVED |
| Yes | 74,738 |
| No | 40,170 |
| MEASURE 52 PACIFIC POWER & LIGHT COMPANY FRANCHISE | TOTAL VOTES RECEIVED |
| Yes | 12,088 |
| No | 16,657 |
| MEASURE 53 MULTNOMAH STADIUM ACQUISITION BONDS | TOTAL VOTES RECEIVED |
| Yes | 79,753 |
| No | 64,028 |