A Duncan

48.9% are female
51.1% are male

51.1% of residents in ZIP 91355 are male and 48.9% are female. 52.2% of residents are married and 13.1% are divorced. 30.4% have never been married. 4.3% are widowed. The average size of resident families is 3.12.

21.7% report being Hispanic

67.9% of residents in ZIP 91355 report their race as White. 2.7% report their race as Black or African American. 11.8% report their race as Asian. 0.5% report their race as American Indian and Alaska Native. 0% report their race as Native Hawaiian and Other Pacific Islander. 5.8% report their race as Some other race. 11.3% report their race as Two or more races. 21.7% report being Hispanic. Note: Hispanic is considered to be an ethnicity and not a race.

47.2% have a Science and Engineering degree

3.8% of residents in ZIP 91355 have less than a high school education. 13.6% have a high school diploma but no more. 33.2% of residents have some college but no more. 32.9% have a bachelor's degree (or equivalent) but no more. 16.5% have a graduate degree. 47.2% have a Bachelor's degree or higher in a Science and Engineering (or related) field.

Median household income: 104637
51.4% have two income earners
52.2% of households earn $100,000+

Median household income in ZIP 91355 is $104637 with 51.4% of families having two income earners. 52.2% of households earn at least $100,000. 2.7% of households have an income under $5,000, 1.3% from $5,000-$10,000, 3% from $10,000-$15,000, 2.3% from $15,000-$20,000, 3.3% from $20,000-$25,000, 3.8% from $25,000-$35,000, 6.8% from $35,000-$50,000, 13.2% from $50,000-$75,000, 11.5% from $75,000-$100,000, 22.6% from $100,000-$150,000 and 29.6% over $150,000. The median income of individuals is $48871.