Summit County Flag

Summit County

State:
Utah
County Seat:
Coalville

Summit County's estimated 2025 population is 42,187 with a growth rate of -0.67% in the past year according to the most recent United States census data. Summit County is the 10th largest county in Utah. The 2010 population was 36,502 and has seen a growth of 15.57% since that time.

42,187
Total Population
23
Population Density (mi²)
10
Population Rank (State)
-286 -0.67%
Annual Population Growth

Summit County Population

Demographics

Economics and Income Statistics