Stanford is an unincorporated area of Santa Clara County and is adjacent to the city of Palo Alto. Stanford, California is a valid postal address, and has its own post office and ZIP codes: 94305 (campus buildings) and 94309 (post-office boxes). A popular site to see/hike in Stanford is the Dish.
The CDP of Stanford is mostly made up of Stanford University. Its resident population consists of the inhabitants of on-campus housing, including graduate student villages and the "Faculty Ghetto" of single-family homes owned by their faculty inhabitants but located on leased Stanford land. A residential neighborhood adjacent to the Stanford campus, College Terrace, featuring streets named after universities and colleges, including Oxford, Harvard, Columbia, Yale, Princeton, Cornell, and Amherst, is not part of the Stanford CDP but of the city of Palo Alto.
According to the United States Census Bureau, the CDP has a total area of 2.8 square miles (7.2 km²), of which, 2.8 square miles (7.1 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.44%) is water.
As of the census of 2000, there were 13,314 people, 3,207 households, and 1,330 families residing in the CDP. The population density was 4,849.8 people per square mile (1,869.4/km²). There were 3,315 housing units at an average density of 1,207.4/sq mi (465.4/km²). The racial makeup of the CDP was 60.40% White, 4.90% Black or African American, 0.72% Native American, 25.57% Asian, 0.16% Pacific Islander, 3.65% from other races, and 4.60% from two or more races. 8.96% of the population were Hispanics or Latinos of any race.
There were 3,207 households out of which 17.9% had children under the age of 18 living with them, 38.7% were married couples living together, 1.8% had a female householder with no husband present, and 58.5% were non-families. 23.0% of all households were made up of individuals and 2.5% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.73.
The age distribution was 7.2% under the age of 18, 58.5% from 18 to 25, 23.7% from 25 to 45, 6.1% from 45 to 65, and 4.4% who were 65 years of age or older. The median age was 22 years. For every 100 females there were 118.0 males. For every 100 females age 18 and over, there were 119.4 males.
The median income for a household in the CDP was $41,106, and the median income for a family was $88,596. Males had a median income of $67,250 versus $56,991 for females. The per capita income for the CDP was $22,443. About 11.1% of families and 21.4% of the population were below the poverty line, including 11.6% of those under age 18 and 1.8% of those age 65 or over.
The area is strongly Democratic, with 54% registered with Democrats and 15% registered with the Republican Party. In the state legislature Stanford is located in the 11th Senate District, represented by Democrat Joe Simitian, and in the 21st Assembly District, represented by Democrat Ira Ruskin. Federally, Stanford is located in California's 14th congressional district, which has a Cook PVI of D +18 and is represented by Democrat Anna Eshoo.