Diablo, California
Diablo is a census-designated place in Contra Costa County, California, United States. The population was 1,255 at the 2020 census. It is located east-northeast of Danville.
Geography
According to the United States Census Bureau, the CDP has a total area of, all of it land.History
A post office was established at Diablo in 1916.Demographics
Diablo first appeared as a census designated place in the 2000 U.S. census created out of part of the Alamo CDP.2020
The 2020 United States census reported that Diablo had a population of 1,255. The population density was. The racial makeup of Diablo was 81.1% White, 0.6% African American, 0.4% Native Americans in [the United States|Native American], 8.0% Asian, 0.0% Pacific Islander, 0.6% from other races, and 9.3% from two or more races. Hispanic or Latino of any race were 6.4% of the population.The census reported that 95.1% of the population lived in households, 4.9% lived in non-institutionalized group quarters, and no one was institutionalized.
There were 424 households, out of which 32.1% included children under the age of 18, 77.1% were married-couple households, 1.9% were cohabiting couple households, 13.2% had a female householder with no partner present, and 7.8% had a male householder with no partner present. 13.0% of households were one person, and 7.1% were one person aged 65 or older. The average household size was 2.81. There were 362 families.
The age distribution was 21.4% under the age of 18, 6.7% aged 18 to 24, 15.5% aged 25 to 44, 35.9% aged 45 to 64, and 20.6% who were 65years of age or older. The median age was 49.8years. For every 100 females, there were 103.7 males.
There were 455 housing units at an average density of, of which 424 were occupied. Of these, 93.9% were owner-occupied, and 6.1% were occupied by renters.