Norwalk is a city in Los Angeles County, California, United States. The population was 105,549 at the 2010 census and an estimated 103,949 in 2019. It is the 58th most densely-populated city in California.Founded in the late 19th century, Norwalk was incorporated as a city in 1957. It is located 17 miles (27 km) southeast of downtown Los Angeles and is part of the Greater Los Angeles area.
Norwalk is a member of the Gateway Cities Council of Governments. Norwalk's sister cities are Morelia in the Mexican state of Michoacán, and Hermosillo, in the Mexican state of Sonora.