by Katie McKellar, Utah News Dispatch June 22, 2026 Did you know that in Utah, some 17-year-olds can vote in Utah’s primary elections before they officially turn 18? It depends, however, on their birth dates. Under Utah law, 17-year-olds can vote in a regular primary election, a municipal primary election or a presidential primary election if they turn 18 “on or before the day of the general election that immediately follows” the primary.