Utah Population Growth Cools to 1.3% as Natural Increase Becomes Main Driver

Overview

• Utah’s estimated population reached 3,551,150 as of July 1, 2025, after adding 44,351 residents over the year.
• Natural change accounted for 57% of growth and net migration 43%, marking the first year this decade that births led the increase.
• Utah County contributed 15,914 new residents, or about 36% of the statewide gain, with Salt Lake County second in numeric growth.
• Tooele and Iron counties were the fastest-growing by percentage at 3%, while 24 counties grew and five—Daggett, Piute, Garfield, Wayne and San Juan—declined.
• Births rose 2.8% and deaths rose 2.1% over the year, and long-range state projections still foresee roughly 5.5 million residents by 2065.