1978 General Election Results
| FOR COMMISSIONER POSITION NO. 2 | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| MILDRED A. SCHWAB | 99,389 | 258 | 135 | 99,782 |
| WRITE-IN VOTES | 563 | 563 | ||
| TOTAL VOTES CAST FOR OFFICE | 100,345 |
| FOR COMMISSIONER POSITION NO. 3 | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| FRANCIS J. (FRANK) IVANCIE | 91,567 | 268 | 112 | 91,947 |
| WRITE-IN VOTES | 497 | 497 | ||
| TOTAL VOTES CAST FOR OFFICE | 92,444 |
| FOR AUDITOR | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| GEORGE YERKOVICH | 88,159 | 250 | 101 | 88,510 |
| WRITE-IN VOTES | 64 | 64 | ||
| TOTAL VOTES CAST FOR OFFICE | 88,574 |
| MEASURE 51 FLUORIDATION OF MUNICIPAL WATER SYSTEM | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| YES | 70,858 | 164 | 129 | 71,151 |
| NO | 68,515 | 166 | 79 | 68,760 |
| TOTAL VOTES CAST FOR MEASURE | 139,911 |
| MEASURE 52 HOTEL-MOTEL TAX TO PROMOTE CONVENTIONS, TOURISM | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| YES | 81,240 | 225 | 138 | 81,603 |
| NO | 52,417 | 108 | 62 | 52,587 |
| TOTAL VOTES CAST FOR MEASURE | 134,190 |
| MEASURE 53 CITY COUNCIL TO ESTABLISH CONTRACT LIMITS | MULTNOMAH COUNTY | CLACKAMAS COUNTY | WASHINGTON COUNTY | TOTAL VOTES RECEIVED |
| YES | 65,563 | 147 | 91 | 65,801 |
| NO | 46,284 | 154 | 68 | 46,506 |
| TOTAL VOTES CAST FOR MEASURE | 112,307 |