Miranda is a census-designated place in Humboldt County, California. It is located 2.5 miles northwest of Phillipsville, in the heart of redwood country, at an elevation of 351 feet. The ZIP Code is 95553. The population was 520 at the 2010 census.The name Miranda, was originally applied to the areas post office on August 26, 1905. One account states that it is not known whether the name giver had in mind a girl or the well-known Spanish place name and family name. Miranda means "admirable." Miranda was known as jacobsen's Valley until the post office was established. Another account states that Etta Coombs chose the name "Miranda" for the post office she started. The town of Miranda is a five-minute walk from the south fork of the Eel River, and is located amidst giant redwood trees. Miranda is located on the Avenue of the Giants between Myers Flat to the north and Phillipsville to the south.