Utopia is a census-designated place (CDP) in Uvalde County, Texas, United States. The population was 241 at the 2000 census. The citizens of the earlier settlement of Waresville renamed their city Utopia after finding 'Montana, Texas,' had already been taken. To this day the cemetery is named for Waresville. A planned utopian community nearby was cancelled after the failure of La Reunion near Dallas discouraged colonizers. The nearby city of Castroville was founded by French (Alsatian) settlers. According to the United States Census Bureau, the CDP has a total area of 3.0square miles (7.6Square kilometers), all of it land.