Since July 1, 2010, Utah has experienced an annual decline in natural increase, a result of annual births declining while annual deaths increase.

...Net migration contributed 48% of Utah’s population growth over the past year, up from 47% of state growth the year before. Utah’s net migration for 2020, 25,256, is 247 more than last year’s estimate. This is the 6th consecutive year that net migration has been above 20,000.

...More than half of Utah’s counties receive the majority of their growth from net in-migration. Statewide, total net in-migration is greatest in Utah County (10,531), with it’s second highest recorded net inmigration in history (2006 was the highest with 10,574).

...Utah closed out the decade with another year of strong population growth, a consistent pattern since 2013, although this growth has mostly stabilized since 2018. The Wasatch Front and southwestern Utah continue to expand and bring migrants from other regions. Net migration is contributing the majority of growth in the fastest growing counties in the state, such as Utah, Washington, Tooele, and Iron counties, a notable shift in sources of growth for Utah County in particular.