Walnut, CA Weather Forecast and Current Conditions (91788)

Walnut is a city in the eastern part of Los Angeles County in the U.S. state of California. According to the 2020 census, the city had a population of 28,430.

The greater Walnut Valley is located between the steep San Jose Hills to the north and the gently sloping Puente Hills to the south. Quality housing consists of master-planned single family homes ranging in size from 1,800 to 11,200 sq ft (170 to 1,040 m²). The city hosts a highly ranked public school system: the Walnut Valley Unified School District, which has been ranked by numerous sources as one of the top public school districts in Southern California, as well as Mt. San Antonio College.

The city covers nearly 9 sq mi (23 km²) and is home to hundreds of businesses. According to the 2023 census bureau estimate, Walnut has a median household income at one of the top-earning percentiles in the country at $133,762.

The city's name is derived from the Rancho Los Nogales Mexican land grant, nogales being the Spanish word for "walnut trees"; the native California black walnut is a common tree, native to the San Jose Hills. The City of Walnut is a general law city incorporated on January 19, 1959. It is governed by a city council/city manager form of government. A five-member city council is elected by the residents, and a mayor is elected annually by the council to serve a twelve-month term. A city manager is appointed by the council to oversee the daily activities of the city.

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