Incorporated: June 19, 1886
City Hall: 100 N Garfield, Pasadena, California 91109
Population (2020 Census): 138,699 (Also see latest State Population Estimates and Earlier decennial Census Counts).
Population Under Age 18 (2020 Census): 16.4%
Population Density (2020 Census): 6,040.4 persons per square mile
Housing Units: 61,643
Persons Per Housing Unit: 2.3
Land Area: 22.96 square miles (59.47 square kilometers)
Water Area: 0.14 square miles (0.37 square kilometers)
Total Area: 23.10 square miles (59.83 square kilometers)
Geographic Coordinates (Latitude/Longitude): 34.160602 -118.137954
Other Facts & Statistics for Cities in Los Angeles County
Also see: 20 Interesting Things About Pasadena
In 1874, the California Colony of Indiana, an organized group of migrants from Indiana, established what would later become Pasadena. Soon after, with non-Indiana settlers joining the colony, residents organized themselves as an agricultural association and adopted the name "San Gabriel Orange Grove Association." In 1875, residents (or, rather, association stockholders) wanted a local post office of their own, so they voted for one of three choices to name the post office: "Indianola" (for the original group of Indiana transplants who established the colony), "Granada" (recognizing California’s Spanish roots), and “Pasadena” (a name from the language of the Native American Chippewa tribe in Michigan). The name chosen, "Pasadena," is credited to Dr. Thomas B. Elliot, who learned of the name from a friend working as a missionary among the Chippewa. "Pasadena" is loosely translated to “of the valley.” Although inaccurate, the popular interpretation of the name meaning “Crown of the Valley” continues to persist.
City in red below. Click on map for more detailed color map of county.
See our Pasadena postcards: