Diamond Bar, California

Diamond Bar is a city in Los Angeles County, California, United States.^[7] The 2020 census states it had a population of 55,072.^[4]

Diamond Bar
City
Diamond Bar City Hall
Location of Diamond Bar in Los Angeles County, California
Diamond Bar Location in the United States
Coordinates: 34°0′6″N 117°49′15″W
Country	United States
State	California
County	Los Angeles
Incorporated	April 18, 1989[1]
Named for	Diamond Bar Ranch
Area [2]
• Total	14.88 sq mi (38.53 km2)
• Land	14.87 sq mi (38.51 km2)
• Water	0.01 sq mi (0.01 km2)
Elevation [3]	696 ft (212 m)
Population  (2020)[4]
• Total	55,072
• Density	3,704/sq mi (1,430/km2)
Time zone	UTC−8 (Pacific)
• Summer (DST)	UTC−7 (PDT)
ZIP Codes	91765,[5] 91789 (91789 is shared with Walnut, CA)
Area code[6]	909
FIPS code	06-19192
GNIS feature IDs	1660549, 2410334
Website	www.diamondbarca.gov