http://governor.utah.gov/dea/popestimates.html
Salt Lake County - 1.03MM
Utah County - 520K
Davis County - 302K
Weber County - 225K
Tooele County - 58K
Park City - 40K
Morgan County - 10K
Juab County - 10K
Wasatch Metro - 2.17 Million
St. George - 145K
Logan has ~125K
Box Elder County (Brigham City) ~ 49K
Iron County (Cedar City) ~45K
There 8 more counties ranging from 15K- 40K