Population of Counties in (2018)

Name 2018 Population Growth Since 2010
Salt Lake County1,135,6499.94%
Utah County606,42516.63%
Davis County347,63712.91%
Weber County251,7698.46%
Washington County165,66219.70%
Cache County124,4389.76%
Tooele County67,45615.31%
Box Elder County54,0797.80%
Iron County51,00110.25%
Summit County41,10612.62%
Uintah County35,1508.26%
Wasatch County32,10635.79%
Sanpete County30,0357.50%
Sevier County21,3162.48%
Carbon County20,295-5.18%
Duchesne County20,0267.40%
San Juan County15,3563.58%
Millard County12,8632.66%
Morgan County11,87324.70%
Juab County11,2509.62%
Emery County10,077-8.43%
Grand County9,6743.89%
Kane County7,5674.91%
Beaver County6,386-4.04%
Garfield County5,078-2.29%
Wayne County2,719-1.91%
Rich County2,3916.03%
Piute County1,420-9.27%
Daggett County1,029-4.46%