| Years of Service | CDI President | City | SWCD |
| 1947-1948 | Earl Elijah | Clarence | Cedar |
| 1949-1950 | Don Anderson | Honey Creek | West Pott |
| 1951-1952 | R. Edward Baur | Van Meter | Madison |
| 1953-1955 | Merle Travis | Bedford | Taylor |
| 1956 | Hubert Beasley | Garden Grove | Decaatur |
| 1957-1958 | Gilbert Fridley | Indianola | Warren |
| 1959 | Newman Lyle | Sheldon | O"Brien |
| 1960-1963 | Joseph O'Hara | Shenandoah | Page |
| 1964-1965 | Alfred Stewart | Oelwein | Fayette |
| 1966-1967 | Harry T Horak | Vinton | Benton |
| 1968-1969 | Ervin J.J. Koos | Shelby | East Pott |
| 1970-1972 | Harold Higgins | Traer | Tama |
| 1973-1974 | Eugene T Swartz | Lenox | Adams |
| 1975-1976 | George Golinghorst | Walcott | Scott |
| 1977 | Ken Kassel | Ayrshire | Palo Alto |
| 1978-1980 | Charles McLaughlin | Britt | Hancock |
| 1981-1982 | J. Harry Scurr | Gilman | Tama |
| 1983-1984 | Russell Guhl | Shell Rock | Butler |
| 1985-1986 | Larry Beeler | Peru | Madison |
| 1987 | Glenn Burrows | Brandon | Buchanan |
| 1988-1989 | Norman Kading | Casey | Adair |
| 1990-1991 | Dan Bruene | Gladbrook | Tama |
| 1992-1993 | J. Kelly Tobin | New Market | Taylor |
| 1994-1995 | Glenn Buresh | Ely | Linn |
| 1996-1997 | Jeannette Winegarden | Cedar Falls | Black Hawk |
| 1998-1999 | Dan Bruene | Gladbrook | Tama |
| 2000-2001 | William Bennett | Elgin | Fayette |
| 2002-2003 | Bernie Bolton | Oakland | East Pott |
| 2004-2005 | Gail "Butch" Neumeyer | Walker | Linn |
| 2006-2007 | Jerry Fine | Bedford | Taylor |