Volcano is a census-designated place (CDP) in Hawaii County, Hawaii, United States located in the District of Puna with a small portion of the CDP in the District of Kaū. The population was 2,575 at the 2010 census, up from 2,231 at the 2000 census. Geography and climate Volcano is located on the east side of the island of Hawaii, on the border of Hawaii Volcanoes National Park and near the northeast rim of Kīlauea's summit caldera. According to the United States Census Bureau, the CDP has a total area of , all of it land. Hawaii Route 11 passes through the southern part of the community, leading northeast to Hilo and southwest to Nāālehu. Owing to its altitude, ranging from below in the southeast to over at its uninhabited northern end, Volcano features a subtropical highland climate (Köppen Cfb), with relatively uniform temperatures and abundant rainfall throughout the year, although rainfall is concentrated during the months of November through April. Demographics 2010 census As of the census of 2010, there were 2,575 people in 1,228 households residing in the CDP. The population density was . There were 1,740 housing units at an average density of . The racial makeup of the CDP was 51.53% White, 0.74% African American, 0.39% American Indian & Alaska Native, 11.57% Asian, 9.79% Native Hawaiian & Pacific Islander, 0.43% from other races, and 25.55% from two or more races. Hispanic or Latino of any race were 8.82% of the population. There were 1,228 households, out of which 17.6% had children under the age of 18 living with them. The average household size was 2.10. In the Volcano CDP the population was spread out, with 17.3% under the age of 18, 5.4% from 18 to 24, 8.8% from 25 to 34, 16.4% from 35 to 49, 34.6% from 50 to 64, and 17.5% who were 65 years of age or older. For every 100 females, there were 99.3 males. For every 100 males there were 100.7 females. 2000 census As of the census of 2000, there were 2,231 people, 896 households, and 498 families residing in the CDP. The population density was . There were 1,229 housing units at an average density of 21.7 per square mile (8.4/km2). The racial makeup of the CDP was 47.87% White, 0.49% African American, 0.54% Native American, 11.39% Asian, 12.24% Pacific Islander, 1.34% from other races, and 26.13% from two