North El Monte, California  North El Monte is a census-designated place (CDP) in the San Gabriel Valley, in Los Angeles County, California, United States. The population was 3,723 at the 2010 census, up from 3,703 at the 2000 census. According to the United States Census Bureau, the CDP has a total area of , all land. At the 2010 census North El Monte had a population of 3,723. The population density was 8,794.7 people per square mile (3,395.7/km²). The racial makeup of North El Monte was 1,768 (47.5%) White (32.0% Non-Hispanic White), 33 (0.9%) African American, 13 (0.3%) Native American, 1,437 (38.6%) Asian, 4 (0.1%) Pacific Islander, 336 (9.0%) from other races, and 132 (3.5%) from two or more races. Hispanic or Latino of any race were 1,002 persons (26.9%). The census reported that 3,669 people (98.5% of the population) lived in households, no one lived in non-institutionalized group quarters and 54 (1.5%) were institutionalized. There were 1,254 households, 426 (34.0%) had children under the age of 18 living in them, 747 (59.6%) were opposite-sex married couples living together, 163 (13.0%) had a female householder with no husband present, 56 (4.5%) had a male householder with no wife present. There were 46 (3.7%) unmarried opposite-sex partnerships, and 5 (0.4%) same-sex married couples or partnerships. 218 households (17.4%) were one person and 99 (7.9%) had someone living alone who was 65 or older. The average household size was 2.93. There were 966 families (77.0% of households); the average family size was 3.31. The age distribution was 742 people (19.9%) under the age of 18, 301 people (8.1%) aged 18 to 24, 962 people (25.8%) aged 25 to 44, 1,109 people (29.8%) aged 45 to 64, and 609 people (16.4%) who were 65 or older. The median age was 42.2 years. For every 100 females, there were 92.1 males.