A commuter town is an urban community that is primarily residential, from which most of the workforce commutes out to earn their livelihood. Many commuter towns act as suburbs of a nearby metropolis that workers travel to daily, and many suburbs are commuter towns. Commuter towns belong to the metropolitan area of a city, and a ring of commuter towns around an urban area is known as a commuter belt.

A commuter town may also be known as a bedroom community or bedroom suburb (Canada and U.S. usage), a dormitory town or dormitory suburb (UK Commonwealth and Ireland usage), or less commonly a dormitory village (UK Commonwealth and Ireland). These terms suggest that residents sleep in these neighborhoods, but normally work elsewhere; they also suggest that these communities have little commercial or industrial activity beyond a small amount of retail, oriented toward serving the residents.

Suburbs and commuter towns are often the same place, but sometimes not. As with college town, resort town, and mill town, the term commuter town describes the place's predominant economic function. A suburb in contrast is a community of lesser size, density, political power and/or commerce than a nearby community. Economic function may change, for example when improved transport brings commuters to industrial suburbs or railway towns in search of suburban living. Some suburbs, for example Teterboro, New Jersey and Emeryville, California, remain industrial when they become surrounded by commuter towns. Many commuters work in such industrial suburbs, but few reside, hence they are not commuter towns.

Lee Earle "James" Ellroy (born March 4, 1948) is an American crime fiction writer and essayist. Ellroy has become known for a so-called "telegraphic" prose style in his most recent work, wherein he frequently omits connecting words and uses only short, staccato sentences, and in particular for the novels The Black Dahlia (1987), The Big Nowhere (1988), L.A. Confidential (1990), White Jazz (1992), American Tabloid (1995), The Cold Six Thousand (2001), and Blood's a Rover (2009).

Ellroy was born in Los Angeles, California, the son of Geneva Odelia (née Hilliker) Ellroy, a nurse, and Armand Ellroy, an accountant and, according to Ellroy, onetime business manager of Rita Hayworth. After his parents' divorce, Ellroy and his mother relocated to El Monte, California. In 1958, Ellroy's mother was murdered. The police never found the perpetrator, and the case remains unsolved. The murder, along with reading The Badge by Jack Webb (a book composed of sensational cases from the files of the Los Angeles Police Department, a birthday gift from his father), were important events of Ellroy's youth.