Tooele County, Utah Dugway Proving Ground in Tooele County. The county's western portion is home to the Bonneville Salt Flats, traversed by Interstate 80 and the Wendover Cut-off, the former routing of the Victory Highway. According to the U.S. Census Bureau, the county has a total area of , of which is land and (4.7%) is water. Covering vast amounts of the Great Salt Lake desert west of Salt Lake Valley, Tooele County is the second largest county in Utah and among the driest. As of the census of 2000, there were 40,735 people, 12,677 households, and 10,128 families residing in the county.
North Salt Lake, Utah Lake is located in southern Davis County; it is bordered to the north by Woods Cross, to the northeast by Bountiful, and to the south by Salt Lake City in Salt Lake County. According to the United States Census Bureau, North Salt Lake has a total area of , of which , or 0.80%, is water. North Salt Lake, Utah North Salt Lake is a city in Davis County, Utah, United States. It is part of the Ogden–Clearfield, Utah Metropolitan Statistical Area. The population was 16,322 at the 2010 census, which had risen to an estimated 19,193 as of 2014.