Logan is a city in Cache County, Utah, in the United States. As of the 2000 census, the city population was 42,670, a substantial increase over the 1990 figure of 32,771. The estimated population in 2005 had increased to 47,357. The Logan metropolitan area contains 109,666 residents. It is the county seat of Cache County. Logan apartments for rent comparison page shows most up to date rent information on Logan apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.