Past State Master Councilors
| Year | Name | Chapter | City |
| 2025 | Fynn Beard | Altoona | Altoona |
| 2024 | Alexander Harshbarger | Altoona | Altoona |
| 2023 | Michael Roach | Altoona | Altoona |
| 2022 | Wyatt Weaver | Cedar Rapids | Cedar Rapids |
| 2021 | Hunter Rapp | Cedar Rapids | Cedar Rapids |
| 2020 | Keaton Dennis | Cedar Rapids | Cedar Rapids |
| Year | Name | Chapter | City |
| 2019 | Jacob Gimmy | Scott County | Davenport |
| 2018 | Cameron Weaver | Cedar Rapids | Cedar Rapids |
| 2017 | Daniel Cunningham | Altoona | Altoona |
| 2016 | Nicolas Myers | Scott County | Davenport |
| 2015 | Nicolas Myers | Scott County | Davenport |
| 2014 | James Robinson | Cedar Rapids | Cedar Rapids |
| 2013 | Caleb Terry | Cedar Rapids | Cedar Rapids |
| 2012 | James Cox | Cedar Rapids | Cedar Rapids |
| 2011 | Jonathan Freel | Altoona | Altoona |
| 2010 | Michael Podzimek | Cedar Rapids | Cedar Rapids |
| Year | Name | Chapter | City |
| 2009 | Brian Bowersox | Cedar Rapids | Cedar Rapids |
| 2008 | Rob Shaw | Hawkeye | Iowa City |
| 2007 | Miles Flamme-Wiese | Champlin | Boone |
| 2006 | Andrew Reif | James A. Guest | Burlington |
| 2005 | Carl Todd | Cedar Rapids | Cedar Rapids |
| 2004 | Tom Bowersox | Cedar Rapids | Cedar Rapids |
| 2003 | Kyle Martin | Cedar Rapids | Cedar Rapids |
| 2002 | Ryan Logan | Champlin | Boone |
| 2001 | Eric Sandegren | Champlin | Boone |
| 2000 | Erik Allen | James A. Guest | Burlington |
| Year | Name | Chapter | City |
| 1999 | Eric Thye | James A. Guest | Burlington |
| 1998 | Keath Allen | Hawkeye | Iowa City |
| 1997 | Brent Hinson | James A. Guest | Burlington |
| 1996 | Todd Patterson | Cedar Rapids | Cedar Rapids |
| 1995 | Brad Reichardt | James A. Guest | Burlington |
| 1994 | B.J. Fairchild | Altoona | Altoona |
| 1993 | Perry Casazza | James A. Guest | Burlington |
| 1992 | Matt Buckley | Bettendorf | Bettendorf |
| 1991 | Shane Harshbarger | James A. Guest | Burlington |
| 1990 | Max Loper | James A. Guest | Burlington |
| Year | Name | Chapter | City |
| 1989 | Eric Sullivan | Cedar Falls | Cedar Falls |
| 1988 | Chris Baker | Ashworth | West Des Moines |
| 1987 | Scott Neff | Altoona | Altoona |
| 1986 | Kirk Besh | Black Hawk | Cedar Falls |
| 1985 | David J. DeWitt | Clinton | Clinton |
| 1984 | Kevin R. Smith | Alverson | Des Moines |
| 1983 | Mark A. Schriner | Clinton | Clinton |
| 1982 | Todd M. Clark | Buena Vista | Storm Lake |
| 1981 | Brian Nelson | Ashworth | West Des Moines |
| 1980 | Steve Watson | Morningside | Sioux City |
| John C. Stuelke | Linn | Marion | |
| Year | Name | Chapter | City |
| 1979 | Martin A. Draper | Council Bluffs | Council Bluffs |
| 1978 | William C. Wagner | G. V. Fiscus | Marshalltown |
| 1977 | Lester J. Strait | Junction | Grand Junction |
| 1976 | Ray Thousand | Morningside | Sioux City |
| 1975 | Bruce Boyler | Davenport | Davenport |
| 1974 | Greg Long | G. V. Fiscus | Marshalltown |
| 1973 | Mark Gunion | Junction | Grand Junction |
| 1972 | Dennis R. Huston | Allen | Dubuque |
| 1971 | Richard C. Stamp | Davenport | Davenport |
| 1970 | Marvin R. Cox | Council Bluffs | Council Bluffs |
| Year | Name | Chapter | City |
| 1969 | William K. Paisley | Allen | Dubuque |
| 1968 | Terry Smith | Alverson | Des Moines |
| 1967 | Dennis DuBois | G. V. Fiscus | Marshalltown |
| 1966 | Paul Dillman | Morningside | Sioux City |
| 1965 | Don Hanson | Dolliver | Fort Dodge |
| 1964 | William C. Durow | Cedar Rapids | Cedar Rapids |
| 1963 | John Cloyed | James A. Guest | Burlington |
| 1962 | Bill Allen | Red Oak | Red Oak |
| 1961 | Gary Strickland | Dolliver | Fort Dodge |
| 1960 | Martin Lee | St. DeGarph | Clarinda |
| Year | Name | Chapter | City |
| 1959 | Pat Reed | Dolliver | Fort Dodge |
| 1958 | Bob DeLoss | Jamison | Sioux City |
| 1957 | Ron Riley | Keokuk | Keokuk |
| 1956 | Larry Drake | Alverson | Des Moines |
| 1955 | John Kennedy | Haggai | Spirit Lake |
| 1954 | Terry Irvin | Cedar Rapids | Cedar Rapids |
| 1953 | Bill Peirson | Gotch | Humboldt |
| 1952 | Dean Estep | Clear Lake | Clear Lake |
| 1951 | No SMC | Korean War | |
| 1950 | Sandy Wolfe | Dolliver | Fort Dodge |
| Year | Name | Chapter | City |
| 1949 | Lowell Wiseman | Alverson | Des Moines |
| 1948 | Bob Olhausen | Spencer | Spencer |
| 1947 | Lee Dice | Linn | Marion |
| 1946 | No SMC | WWII | |
| 1945 | No SMC | WWII | |
| 1944 | No SMC | WWII | |
| 1943 | No SMC | WWII | |
| 1942 | Ben Brown | De Peraundo | Shenandoah |
| 1941 | Marion Chard | Unity | Audubon |
| 1940 | Merle Kitchen | Hugh de Payen | Carroll |
| Year | Name | Chapter | City |
| 1939 | John C. Meyers | James A. Guest | Burlington |
| 1938 | Lewis Harlan | Linn | Marion |
| 1937 | Dick F. Perley | Sioux City | Sioux City |
| 1936 | Elmer E. Schake | Davenport | Davenport |
| 1935 | Norman Bishop | Alverson | Des Moines |
| 1934 | Willis Cummins | Council Bluffs | Council Bluffs |
| 1933 | Norman Guster | Gaufrid de Charney | Denison |
| 1932 | Sam Cooke Jr. | Red Oak | Red Oak |
| 1931 | Gordon Ellis | Sioux City | Sioux City |
| 1930 | George Kruse | Clinton | Clinton |
| Year | Name | Chapter | City |
| 1929 | Raymond Groves | Davenport | Davenport |
| 1928 | Ted Pierson | Red Oak | Red Oak |
| 1927 | Jerry Ferroe | Ames | Ames |
| 1926 | D. William Ash | Alverson | Des Moines |
| 1925 | Paul Federson | Belle Plaine | Belle Plaine |
| 1924 | C.R. Shoephorster | Clinton | Clinton |
| 1923 | William M. Bales | Estherville | Estherville |