Hacienda Heights () is an unincorporated community in the San Gabriel Valley of Los Angeles County, California, United States. As of the 2020 census, the community had a total population of 54,191, up from 54,038 at the 2010 census. For statistical purposes, the Census Bureau has defined Hacienda Heights as a census designated place (CDP). It is the third largest CDP in Los Angeles County by area, behind Topanga and Rowland Heights, and the county's fourth largest CDP by population.
History
Hacienda Heights sits on land that was originally part of Rancho La Puente.
During Spanish rule, the land around Hacienda Heights was operated by the nearby Mission San Gabriel Arcángel in San Gabriel. The Rancho was eventually acquired by John A. Rowland and William Workman in 1845 via a Mexican land grant, and eventually acquired by Elias "Lucky" Baldwin in the mid-1870s. In 1912, his descendant, Anita Baldwin, sold the property to Edwin Hart and Jet Torrance. However, from the Great Depression era to the early 1940s, citrus growing became unprofitable because of pests and diseases, setting the impetus for the area's transformation into a suburb.
Accelerating in the 1950s, suburban residential development In 1960, the Hacienda Heights Branch of the Los Angeles County Public Library opened.
Geography
Hacienda Heights is in the eastern San Gabriel Valley bordering City of Industry to the North, Whittier to the West, La Habra Heights to the South, and Rowland Heights to the East along the Pomona Freeway - Route 60. Hacienda Heights is a predominantly residential neighborhood.
According to the United States Census Bureau, the community has a total area of , of which only 0.05% is water.