Rosemead is a city in Los Angeles County, California, United States. As of the 2010 census, it had a population of 53,764. Rosemead is part of a cluster of cities, along with Arcadia, Temple City, Monterey Park, San Marino, and San Gabriel, in the west San Gabriel Valley with a growing Asian population. Prior to the arrival of the Spanish, the area around Rosemead was populated by Native Americans of the Tongva, or as the Spaniards renamed them, the Gabrielinos. In 1771, the Spanish founded the first San Gabriel mission in the area that is now known as Whittier Narrows on the border between... Montebello and Rosemead. In 1775, the mission moved to avoid the spring floods that ruined the first crops, to its present location in San Gabriel. During the Spanish Colonial era, the area that is now the City of Rosemead, was part of the land administered by the San Gabriel Mission.
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| County: | Los Angeles County |
| State: | California |
| Country: | United States of America |
| Population: | 53,764 |
| Area: | 5.2 sq. mi. |
| Time zone: | Pacific Time Zone |
| Also known as: | Rosemead, California, Los Angeles County / Rosemead city |