Bellflower is a city located in southeast Los Angeles County, California, in the Los Angeles metropolitan area. It was founded in 1906 and incorporated on September 3, 1957. As of the 2010 census, the city had a total population of 76,616, up from 72,878 at the 2000 census. This made it the 65th most densely populated city in the United States, of cities over 50,000 residents. The site was formerly rich farmland watered by artesian wells and floodwaters of the now-contained San Gabriel River.