What is the population and geographic area of Los Angeles?

Specifically I am looking for the information concerning the area that the Los Angeles Mayor's Office has control over. I tried looking up that information on the US Census Bureau but their information includes data on other cities in the Los Angeles county that are considered to be part of the Los Angeles metropolitan area but are other cities which have their own city hall and municipal code such as Glendale or Burbank. In contrast, most cities in the San Fernando Valley such as Arleta or Van Nuys do not have their own city hall and have their laws come from the City of Los Angeles city hall.