East Pasadena is a census-designated place (CDP) in Los Angeles County, California, United States. The population was 6,144 at the 2010 census, up from 6,045 at the 2000 census.

According to the United States Census Bureau, the CDP has a total area of 1.3 square miles (3.4 km2), all land.

The land area of East Pasadena is separated into two non-contiguous segments:

The main portion, bordered by Pasadena city limits on the North, California Boulevard on the south, Michillinda Avenue (Arcadia city limits) on the east, and San Gabriel Boulevard on the west.

A smaller district to the west, bordered by Del Mar Boulevard to the north, San Marino city limits to the south, Berkeley Avenue to the west and San Gabriel Boulevard to the east.

The community has become considerably smaller as the city of Pasadena has expanded its boundaries to include more of the unincorporated area of East Pasadena.

Zip code: 91107

As of the census of 2000, there were 6,045 people, 2,038 households, and 1,502 families residing in the CDP. The population density was 4,586.6 inhabitants per square mile (1,768.2/km²). There were 2,124 housing units at an average density of 1,611.6 per square mile (621.3/km²). The racial makeup of the CDP was 55.70% White, 2.55% Black or African American, 0.79% Native American, 20.03% Asian, 0.05% Pacific Islander, 14.43% from other races, and 6.45% from two or more races. 35.24% of the population were Hispanic or Latino of any race.

There were 2,038 households out of which 34.6% had children under the age of 18 living with them, 58.0% were married couples living together, 10.7% had a female householder with no husband present, and 26.3% were non-families. 21.3% of all households were made up of individuals and 7.6% had someone living alone who was 65 years of age or older. The average household size was 2.95 and the average family size was 3.43.

In the CDP the population was spread out with 24.6% under the age of 18, 8.4% from 18 to 24, 29.6% from 25 to 44, 23.8% from 45 to 64, and 13.6% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 94.6 males. For every 100 females age 18 and over, there were 91.2 males.

The median income for a household in the CDP was $53,378, and the median income for a family was $61,531. Males had a median income of $50,208 versus $35,104 for females. The per capita income for the CDP was $34,548. About 6.1% of families and 9.4% of the population were below the poverty line, including 12.6% of those under age 18 and 4.0% of those age 65 or over.