| | | | Short Title | | Yes | | No | | Outcome | | Type of Change | |
| | 1 | | An Amendment to Article IV of the Constitution of the State of Colorado, by the addition of a new section 22, providing that executive and a | | 69% | | 30% | | Adopted | | Constitutional | |
| | 2 | | An Amendment to Section 6 of Article X of the Constitution of the State of Colorado, providing for classification of self-propelled equipmen | | 60% | | 39% | | Adopted | | Constitutional | |
| | Ref 1 | | Providing for daylight saving time in Colorado. | | 57% | | 42% | | Adopted | | Statutory | |
| | Ref 2 | | Shall Capital Punishment be abolished? | | 33% | | 66% | | Rejected | | Statutory | |
| 1964 |
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| | 1 | | An Amendment to Articles IV and V of the Constitution of the State of Colorado providing for a State Auditor under the Legislative Departmen | | 63% | | 36% | | Adopted | | Constitutional | |
| | 2 | | An Amendment to Article IX of the Constitution of the State of Colorado providing that the Office of County Superintendent of Schools may be | | 63% | | 36% | | Adopted | | Constitutional | |
| 1962 |
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| | 7 | | Providing for the apportionment of the General Assembly and providing for senatorial and representative districts | | 63% | | 36% | | Adopted | | Constitutional | |
| | 8 | | Relating to reapportionment, including a commission on legislative apportionment | | 32% | | 67% | | Rejected | | Constitutional | |
|
| Referendum |
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| | 1 | | Providing for the reorganization of the Judicial Department | | 64% | | 35% | | Adopted | | Constitutional | |
| | 2 | | Relating to officers in the City and County of Denver | | 38% | | 61% | | Rejected | | Constitutional | |
| | 3 | | Relating to income tax payments and to allow the definition of income as used in the laws of the U.S. | | 53% | | 46% | | Adopted | | Constitutional | |
| | 4 | | Relating to the qualification of voters, including the right to vote for President by non-residents | | 68% | | 31% | | Adopted | | Constitutional | |
| | 5 | | Relating to taxable property: assessment and county boards of equalization | | 50% | | 49% | | Adopted | | Constitutional | |
| | 6 | | Relating to county and local officers, including terms of office | | 49% | | 50% | | Rejected | | Constitutional | |
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| Initiative |
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| | 3 | | Creating a wildlife management commission and a department of wildlife conservation | | 31% | | 68% | | Rejected | | Constitutional | |
| | 4 | | Providing for daylight savings time | | 45% | | 54% | | Rejected | | Statutory | |
| | 5 | | Concerning a retail sales and use tax and authorizing the vesting in counties, cities and towns the power to impose a retail sales and use tax for local purposes, except for drugs and food for off-premise purposes | | 33% | | 66% | | Rejected | | Constitutional | |
| | 7 | | Authorizing the Governor, with consent of the Senate, to appoint administrative officers of certain departments, to be excluded from the state civil service | | 28% | | 71% | | Rejected | | Constitutional | |
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| | 1 | | Concerning the classified civil service of the state | | 38% | | 61% | | Rejected | | Constitutional | |
| | 2 | | Relating to county officers and changes by vote of the people | | 41% | | 58% | | Rejected | | Constitutional | |
| 1958 |
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