Los Angeles City Hall in the context of "Civic Center, Los Angeles, California"

Most U.S. states and territories have at least two tiers of local government: counties and municipalities. Louisiana uses the term parish and Alaska uses the term borough for what the U.S. Census Bureau terms county equivalents in those states. Civil townships or towns are used as subdivisions of a county in 20 states, mostly in the Northeast and Midwest.

Population centers may be organized into incorporated municipalities of several types, including the city, town, borough, and village. The types and nature of these municipal entities are defined by state law, and vary from state to state. In addition to these general-purpose local governments, states may also create special-purpose local governments. Depending on the state, local governments may operate under their own charters or under general law, or a state may have a mix of chartered and general-law local governments. Generally, in a state having both chartered and general-law local governments, the chartered local governments have more local autonomy and home rule. Municipalities are typically subordinate to a county government, with some exceptions. Certain cities, for example, have consolidated with their county government as consolidated city-counties. In Virginia, cities are completely independent from the county in which they would otherwise be a part. In some states, particularly in New England, towns form the primary unit of local government below the state level, in some cases eliminating the need for county government entirely. Many rural areas and even some suburban areas of many states have no municipal government below the county level.

The late-Victorian-era Downtown of Los Angeles in 1880 was centered at the southern end of the Los Angeles Plaza area, and over the next two decades, it extended south and west along Main Street, Spring Street, and Broadway towards Third Street. Most of the 19th-century buildings no longer exist, surviving only in the Plaza area or south of Second Street. The rest were demolished to make way for the Civic Center district with City Hall, numerous courthouses, and other municipal, county, state and federal buildings, and Times Mirror Square. This article covers that area, between the Plaza, 3rd St., Los Angeles St., and Broadway, during the period 1880 through the period of demolition (1920s–1950s).

At the time (1880–1900s), the area was referred to as the business center, business section or business district. By 1910, it was referred to as the "North End" of the business district which by then had expanded south to what is today called the Historic Core, along Broadway, Spring and Main roughly from 3rd to 9th streets.