City of Walnut

Seal of the City of Walnut

General Law city
Incorporated: January 19, 1959
City Hall: 21201 La Puente Rd, Walnut, California 91789
City Telephone: (909) 595-7543
Website: http://ci.walnut.ca.us
Population (2010 Census): 29,172 (2000 Census: 30,004; 1990 Census: 29,105). For latest State Population Estimates, click here.
Population Density (2010 Census): 3,244.2 persons per square mile
Population Age 65+ (2010 Census): 12.2% (2000 Census: 6.9%; 1990 Census: 3.9%)
Population Under Age 18 (2010 Census): 20.9% (2000 Census: 27.8%; 1990 Census: 32.6%)
Land Area: 8.99 square miles (23.29 square kilometers)
Water Area: 0.00 square miles (0.01 square kilometers)

Other City Facts & Statistics

City Government Officials

The local post office was originally called Lemon due to its location on Lemon Road. The name was changed to Walnut in 1912, probably because of the negative slang use of the word lemon.

City in red below. Click on map for more detailed color map of county.

Map showing location of the City of Walnut