Colorado held no regularly scheduled state elections in 2021, but voters decided 3 statewide ballot measures.
Ballot measures
| Measure | Description | Result |
|---|---|---|
| Amendment 78 | Transfers the power to appropriate custodial funds (state revenue not generated through taxes) from the state treasurer to the state legislature | Failed (43.03% yes) |
| Proposition 119 | Creates an out-of-school education program and a board to govern it and increases the marijuana retail sales tax by 5% to partially fund the program | Failed (45.75% yes) |
| Proposition 120 | Reduces the residential and non-residential property tax rates; authorizes the state to retain and spend $25 million in revenue above the state's TABOR spending cap, which it would otherwise be required to refund to taxpayers | Failed (42.96% yes) |