
Salt Lake County
- State:
- Utah
- County Seat:
- Salt Lake City
Salt Lake County's estimated 2025 population is 1,184,301 with a growth rate of -0.06% in the past year according to the most recent United States census data. Salt Lake County is the 1st largest county in Utah. The 2010 population was 1,032,997 and has seen a growth of 14.65% since that time.