Layton, city (1990 pop. 41,784), Davis co., N Utah, between the Wasatch Range and Great Salt Lake. In an irrigated farm area served by the Weber basin project, it produces fruits and vegetables. Cattle and sheep are raised, there is dairying, and bakery goods and computer software are produced. During the 1970s and 80s, Layton grew with the development of commercial and financial activities in nearby Salt Lake City.