High Quality Content by WIKIPEDIA articles! Tobin is a census-designated place (CDP) in Plumas County, California, United States. The population was 11 at the 2000 census.As of the census of 2000, there were 11 people, 8 households, and 1 family residing in the CDP. The population density was 2.2 people per square mile (0.8/km²). There were 21 housing units at an average density of 4.2/sq mi (1.6/km²). The racial makeup of the CDP was 72.73% White, 9.09% from other races, and 18.18% from two or more races. Hispanic or Latino of any race were 27.27% of the population.