| | | | Short Title | | Yes | | No | | Outcome | | Type of Change | |
|
| Referendum |
| |
| | 1 | | An amendment to section 22 of article IV of the constitution of the State of Colorado, exempting the heads of principal departments establis | | 57% | | 42% | | Adopted | | Constitutional | |
| | 2 | | An amendment to article XII of the constitution of the State of Colorado, creating the Colorado state personnel system, providing therein fo | | 66% | | 33% | | Adopted | | Constitutional | |
| | 3 | | An amendment to articles XI, XIV, and XX of the constitution of the State of Colorado, relating to local government, and providing for home | | 65% | | 34% | | Adopted | | Constitutional | |
| | 4 | | An amendment to article VII of the constitution of the State of Colorado, reducing the minimum age and residency requirements of electors an | | 45% | | 54% | | Rejected | | Constitutional | |
| | 5 | | An amendment to article VII of the constitution of the State of Colorado, changing the residency qualification of electors, and providing th | | 64% | | 35% | | Adopted | | Constitutional | |
| 1968 |
| |
| |
| 1964 |
| |
| |
| 1960 |
| |
| |
| 1956 |
| |
| |
| 1952 |
| |
| |
| 1948 |
| |
| |
| 1944 |
| |
| |
| 1940 |
| |
| |
| 1936 |
| |
| |
| 1932 |
| |
| |
| 1928 |
| |
| |
| 1924 |
| |
| |