Lennox (pronunciationⓘ) is a census-designated place (CDP) in the South Bay region of Los Angeles County, California, United States.

Formerly part of the vast rancho owned by Daniel Freeman, by the 1920s it was an established community spanning 7 square miles, with a Pacific Electric[4] railway line running through its center along Hawthorne boulevard.

[5] Shortly afterwards, in 1925, an attempt to annex a further 2 square miles of Lennox was decisively defeated at the ballot box.

In 1939, FHA documents described the area as an intermittently developed farming community, high heterogenous in construction and population.

[6] The surveyors noted, however, that "The town is quite evidently on the upgrade, recent construction being of distinctly better quality and design than the older dwellings."

After the war, in 1949, the establishment of Los Angeles International Airport immediately to the West had an enormous impact on Lennox.

The introduction of jet aircraft, including the supersonic Concorde, significantly increased noise and air pollution in Lennox.

[5] The abundance of inexpensive rentals and proximity to employment made Lennox a very popular destination for immigrants from Mexico and Central America.

Gang violence and the Crack epidemic in the United States both severely affected Lennox, which had no local government and was therefore unable to take political action to address its myriad problems.

[9] Since the 1990s, however, Lennox has benefitted greatly from the decline in crime and gang violence across the whole of Los Angeles County.

Neighboring areas of Hawthorne and Inglewood have undergone physical redevelopment and economic revitalization, including the renovation of Century Boulevard and the construction of the massive SoFi Stadium and its surrounding housing and commercial development.

Interstate 105 follows Lennox's borders exactly, forming an odd curve, because opposition from Hawthorne to its construction led to an alignment along the city's far northern boundary.

Since the area has never successfully voted to incorporate, neighboring cities have repeatedly annexed large chunks of it.

[5] The CDP sits underneath the flight path of passenger jets landing at Los Angeles International Airport (LAX).

[10] According to the United States Census Bureau, the CDP has a total area of 1.1 square miles (2.8 km2), all land.

By 1985 people in the Los Angeles area referred to Lennox as "Little Tijuana" due to the size of the Hispanic community, and by that year there were a significant number of newly arrived immigrants.

[32] The Los Angeles County Board of Supervisors governs over Lennox like a city council, and is part of Supervisorial District 2,[33] by the leadership of Holly Mitchell.

[42] In 2014, an air quality study found harmful ultrafine particles from the takeoffs and landings at Los Angeles International Airport to be much greater magnitude than previously thought.