Orange County Board of Supervisors Supervisors Supervisors

| Year_ | _1st_District | _2nd_District | _3rd_District | _4th_District | _5th_District |
|---|---|---|---|---|---|
| 1970 | Robert Battin | David L. Baker | William J. Phillips | William H. Hirstein | Alton Allen |
| 1971 | Robert Battin | David L. Baker | William J. Phillips | Ralph B. Clark | Ronald Caspers |
| 1972 | Robert Battin | David L. Baker | William J. Phillips | Ralph B. Clark | Ronald Caspers |
| 1973 | Robert Battin | David L. Baker | Ralph Diedrich | Ralph B. Clark | Ronald Caspers |
| 1974 | Robert Battin | David L. Baker | Ralph Diedrich | Ralph B. Clark | Ronald Caspers |
| 1975 | Robert Battin | Laurence Schmit | Ralph Diedrich | Ralph B. Clark | Thomas F. Riley |
| 1976 | Robert Battin | Laurence Schmit | Ralph Diedrich | Ralph B. Clark | Thomas F. Riley |
| 1977 | Philip Anthony | Laurence Schmit | Ralph Diedrich | Ralph B. Clark | Thomas F. Riley |