Magalia is an unincorporated community and census-designated place in Butte County, California, United States. The population was 11,310 at the 2010 census. Originally established after the 1849 California Gold Rush as a mining camp, the town was first called Mountain View. A dog breeding operation started in 1850 which led to the name Dogtown. A post offi…Magalia is an unincorporated community and census-designated place in Butte County, California, United States. The population was 11,310 at the 2010 census. Originally established after the 1849 California Gold Rush as a mining camp, the town was first called Mountain View. A dog breeding operation started in 1850 which led to the name Dogtown. A post office opened in 1857, which was shared with the adjacent settlement of Mill City; the two eventually united. In 1861 the name was changed to Magalia after the Latin word for cottages.