Logan is a city in Cache County, Utah. As of the 2010 U.S. Census the population was 48,174. Logan is the county seat of Cache County, and the principal city of the Logan, UT-ID Metropolitan Statistical Area, which includes Cache County and Franklin County, Idaho. The Logan metropolitan area contained 125,442 people as of the 2010 Census In 2005 and 2007 Morgan Quitno declared the Logan metropolitan area the safest in the United States.
Logan is the location of the main campus of Utah State University.
The town of Logan was founded in 1859 by Mormon settlers sent by Brigham Young to survey for the site of a fort near the banks of the Logan River. They named their new community Logan for Ephraim Logan, who had been one of the early fur trappers who lived in the area. Logan was incorporated on 17 January 1866. Work for a Latter-day Saint tabernacle and a temple began shortly thereafter, with the Logan Utah Temple being dedicated in 1884, and the Logan Tabernacle in 1891. Brigham Young College was founded here in 1878 (but later closed) and Utah State University – then called the Agricultural College of Utah – was founded in 1888.