List of mayors of Boise, Idaho Passages Passages

| Incumbent | Reason_for_Vacancy | Appointed_Successor | Date_of_Appointment | Elected_Successor | Date_of_Election_ |
|---|---|---|---|---|---|
| Herbert F. Lemp | Died May 6, 1927 | Walter F. Hansen | May 6, 1927 | James P. Pope | April 1929 |
| James P. Pope | Resigned February 13, 1933 | Ross Cady | February 13, 1933 | J. J. McCue | April 1933 |
| Byron E. Hyatt | Died November 11, 1936 | J. L. Edlefsen | November 11, 1936 | J. L. Edlefsen | April 1937 |
| H. W. Whillock | Resigned May 11, 1942 | Austin Walker | May 11, 1942 | Austin Walker | April 1943 |
| Austin Walker , Sam S. Griffin | Died October 31, 1945 , Resigned February 25, 1946 | Sam S. Griffin , H. W. Whillock | October 31, 1945 , February 25, 1946 | Potter P. Howard | April 1947 |