Camino Tassajara is a census-designated place in Contra Costa County, California. Camino Tassajara sits at an elevation of. The 2010 United States census reported Camino Tassajara's population was 2,197.GeographyAccording to the United States Census Bureau, the CDP has a total area of 1.261 square miles (3.265 km²), all of it land.DemographicsThe 2010 United States Census reported that Camino Tassajara had a population of 2,197. The population density was 1,742.6 people per square mile (672.8/km²). The racial makeup of Camino Tassajara was 876 (39.9%) White, 53 (2.4%) African American, 4 (0.2%) Native American, 1,117 (50.8%) Asian, 1 (0.0%) Pacific Islander, 33 (1.5%) from other races, and 113 (5.1%) from two or more races. Hispanic or Latino of any race were 138 persons (6.3%).The Census reported that 100% of the population lived in households.There were 632 households, out of which 433 (68.5%) had children under the age of 18 living in them, 503 (79.6%) were opposite-sex married couples living together, 47 (7.4%) had a female householder with no husband present, 26 (4.1%) had a male householder with no wife present. There were 16 (2.5%) unmarried opposite-sex partnerships, and 5 (0.8%) same-sex married couples or partnerships. 44 households (7.0%) were made up of individuals and 7 (1.1%) had someone living alone who was 65 years of age or older. The average household size was 3.48. There were 576 families (91.1% of all households); the average family size was 3.65.