Hollywood is situated west-northwest of downtown Los Angeles. Due to its fame and cultural identity as the historical center of movie studios, the word Hollywood is often used as a metonym of American cinema. Today, much of the movie industry has dispersed into surrounding areas such as the Westside neighborhood, and the San Fernando and Santa Clarita Valleys, but significant auxiliary industries, such as editing, effects, props, post-production, and lighting companies remain in Hollywood, as does the back lot of Paramount Pictures.
The bounders of Hollywood can be loosely described as the area east of West Hollywood, south of Mulholland Drive, Laurel Canyon, Cahuenga Boulevard, and Barham Boulevard, and the cities of Burbank and Glendale, north of Melrose Avenue and west of the Golden State Freeway and Hyperion Avenue. This includes all of Griffith Park and Los Feliz – two areas that were hitherto considered separate from Hollywood by most Angelenos. The population of the district, including Los Feliz, as of the 2000 census was 123,436.
As an area within the Los Angeles city limits, Hollywood does not have its own municipal government. There was an official, appointed by the Hollywood Chamber of Commerce, who served as an honorary "Mayor of Hollywood" for ceremonial purposes only. Johnny Grant held this position from 1980 until his death on January 9, 2008. However, no replacement has ever been named after Grant's death.
Some of this information is courtesy of wikipedia.com