Walnut, California

Walnut is a city in Los Angeles County in the U.S. state of California.^[6] During the 2020 census, the city had a population of 28,430.^[4]

Walnut, California
City
View of Mt. San Antonio College and surrounding area
Location of Walnut in Los Angeles County, California
Walnut, California Location in the United States
Coordinates: 34°2′N 117°52′W
Country	United States
State	California
County	Los Angeles
Incorporated (city)	January 19, 1959[1]
Named for	Rancho Los Nogales (English: Ranch of the Walnut Trees)
Area [2]
• Total	9.00 sq mi (23.30 km2)
• Land	8.99 sq mi (23.29 km2)
• Water	0.00 sq mi (0.01 km2)  0.04%
Elevation [3]	561 ft (171 m)
Population  (2020)[4]
• Total	28,430
• Density	3,200/sq mi (1,200/km2)
Time zone	UTC-8 (PST)
• Summer (DST)	UTC-7 (PDT)
ZIP Codes	91788, 91789, 91795[5]
Area code(s)	909, 626
FIPS code	06-83332
GNIS feature IDs	1652808, 2412173
Website	www.cityofwalnut.org