17-Year-Olds and Primary Elections
Although the federal voting age is 18, a third of the states allow those who are 17, but will be 18 by the general election, to vote in primaries. Although the federal voting age is 18, 18 states and Washington, D.C., allow those who are 17, but will be 18 by the general election, to vote in primaries.
Some states may allow 17-year-olds to vote in presidential primaries or caucuses as well. These states are not included on this webpage.
For information on states that permit 16- and 17-year-olds to register to vote, see Preregistration for Young Voters.
This page is part of NCSL’s Toolkit for Primary Elections, which provides information on many different aspects of party nomination systems.