West Puente Valley is an unincorporated community and census-designated place located in the San Gabriel Valley of Los Angeles County, California, United States. It is situated northwest of the city of La Puente.
According to the 2020 census, the population of West Puente Valley was 22,959, reflecting a slight increase from the 22,636 residents recorded in 2010. The community's name is believed to be derived from its geographical location in relation to La Puente.