Hacienda Heights

Hacienda Heights is an unincorporated suburban community and census-designated place in Los Angeles County, California, United States. Hacienda Heights is the second largest census designated place in Los Angeles County by area and the county's second largest CDP by population. Hacienda Heights is a predominantly residential neighborhood. Hacienda Heights also has the Puente Hills forming its 'green belt' southern border and much of its western border. The "Puente Hills Landfill Native Habitat Preservation Authority" supports public enjoyment and access of the nearby parkland in the Puente Hills.

Originally an agricultural town, beginning in the 1940s and accelerating in the 1950s, suburban residential development, which occurred southward (beginning on subdivisions near Kwis Avenue), transformed Hacienda Heights into a residential or bedroom community. In 1961, the Hacienda Heights Branch of the Los Angeles County Public Library opened. The following year, in 1961, the area was renamed Hacienda Heights.