From SLT Trip story:
Six of the 10 cities that gained the most residents between July 1, 2022, and July 1, 2023, were in Utah, according to Census Bureau estimates, and all but one was in the Wasatch Front.

Lehi had the most growth, adding 5,849 residents in one year. It was followed by:

Saratoga Springs with 3,219 more residents.

Eagle Mountain with 2,810 more residents.

St. George with 2,017 more residents.

Salt Lake City with 1,916 more residents.

West Haven with 1,663 more residents.

Payson with 1,529 more residents.

Syracuse with 1,484 more residents.

Spanish Fork with 1,415 more residents.

American Fork with 1,289 more residents.

Lehi, Payson, Saratoga Springs and West Haven also were among the cities with the largest proportional gains, growing by 6.9%, 6.8%, 6.5% and 7.4%, respectively.

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West Valley City lost the most residents, according to the Census Bureau estimates. Its population decreased by 2,125 people. It was followed by:

West Jordan losing 1,689 residents.

Sandy losing 1,047 residents.

Millcreek losing 796 residents.

Taylorsville losing 765 residents.

Holladay losing 508 residents.

Orem losing 471 residents.

Springville losing 378 residents.

Pleasant Grove losing 360 residents.

Provo losing 346 residents.