where is irwindale ca located
Irwindale, CA. Sponsored Topics. Irwindale is a city in the San Gabriel Valley, in Los Angeles County, California, United States. The population was 1,422 at the 2010 census, down from 1,446 at the 2000 census. With relatively few residents, Irwindale consists mostly of rock quarries, which are the major revenue source for the city.