Bear River City is a city in Box Elder County, Utah, United States. The population was 877 at the 2020 census, up from the 2010 figure of 853. Bear River became a city under state law near the end of 2000. Although current state law requires a minimum population of 1000 for cities, Bear River City remains a city. A group first settled Bear River City from Brigham City in 1866. The city took its name from the nearby Bear River.