American Canyon (previously known as Napa Junction) is a city in southern Napa County, California, United States, northeast of San Francisco, part of the San Francisco Bay Area. The 2020 census reported the city's population as 21,837. Its ZIP Code is 94503, and its area code is 707. It is in the Pacific Time time zone and observes Daylight-Saving Time. The city was incorporated in 1992.
American Canyon is bounded geographically by the Napa River to the west, the foothills of the Sulfur Springs Mountains to the east, Vallejo and Solano County to the south and vineyards and the Napa County Airport (IATA airport code APC) to the north. American Canyon Creek, a tributary of the Napa River, runs through the city.
According to the United States Census Bureau, the city has a total area of , of which 99.83% is land and 0.17% is water.
The unincorporated community of Napa Junction is adjacent to the city.
On August 24, 2014, at 3:20 a.m., the area was struck by a magnitude 6.0 earthquake centered northwest of the city.
This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above . According to the Köppen Climate Classification system, American Canyon has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.
American Canyon is the second most populous city in Napa County, after the City of Napa.
As of the 2020 census, American Canyon had a population of 21,837. The population density was . The census reported that 99.7% of residents lived in households and 0.3% lived in non-institutionalized group quarters.
The median age was 38.3 years. 24.2% of residents were under the age of 18, 10.3% were between 18 and 24, 24.6% were between 25 and 44, 27.6% were between 45 and 64, and 13.3% were 65 years of age or older. For every 100 females there were 95.0 males, and for every 100 females age 18 and over there were 92.5 males age 18 and over.
There were 6,192 households, of which 46.4% had children under the age of 18 living in them. Of all households, 60.7% were married-couple households, 5.3% were cohabiting couple households, 21.7% had a female householder with no partner present, and 12.3% had a male householder with no partner present. About 12.8% of all households were made up of individuals and 6.2% had someone living alone who was 65 years of age or older. The average household size was 3.51. There were 5,091 families (82.2% of all households).
There were 6,334 housing units at an average density of , of which 97.8% were occupied; 74.9% were owner-occupied and 25.1% were occupied by renters. About 2.2% of housing units were vacant, with a homeowner vacancy rate of 0.3% and a rental vacancy rate of 2.9%.
99.8% of residents lived in urban areas, while 0.2% lived in rural areas.
In 2023, the US Census Bureau estimated that 31.1% of the population were foreign-born. Of all people aged 5 or older, 56.7% spoke only English at home, 21.8% spoke Spanish, 3.1% spoke other Indo-European languages, 18.0% spoke Asian or Pacific Islander languages, and 0.4% spoke other languages. Of those aged 25 or older, 83.7% were high school graduates and 32.7% had a bachelor's degree.
The median household income was $123,935, and the per capita income was $43,301. About 7.4% of families and 7.5% of the population were below the poverty line.
Major employers in American Canyon include Owens Corning Masonry Products and Mezzetta.
The mayor of American Canyon is popularly elected to a four-year term. The current mayor is Pierre Washington. City Council members are elected to four-year terms, and select one of their members to serve as vice mayor. The other current City Council members are Mark Joseph, Melissa Lamattina, David Oro, and Brando Cruz. Pierre Washington is serving his first term as mayor, and Mark Joseph is the vice mayor.
In the California State Legislature, American Canyon is in , and in .
In the United States House of Representatives, American Canyon is in .