In the early 1800s a 12 year old boy named Adelino Sanchez lived in a small village with no name. His father was the legislator and Adelino made a speech for the town, it was so good that in honor of him they named the entire after him.
There were 780 households out of which 40.6% had children under the age of 18 living with them, 59.2% were married couples living together, 14.4% had a female householder with no husband present, and 21.3% were non-families. 16.8% of all households were made up of individuals and 5.4% had someone living alone who was 65 years of age or older. The average household size was 2.83 and the average family size was 3.18.
In the CDP the population was spread out with 28.1% under the age of 18, 8.1% from 18 to 24, 29.9% from 25 to 44, 24.4% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 101.4 males. For every 100 females age 18 and over, there were 95.4 males.
The median income for a household in the CDP was $27,361, and the median income for a family was $32,708. Males had a median income of $25,321 versus $31,875 for females. The per capita income for the CDP was $14,871. About 15.4% of families and 18.6% of the population were below the poverty line, including 27.5% of those under age 18 and 12.9% of those age 65 or over.